6898740 has 48 divisors (see below), whose sum is σ = 19944960. Its totient is φ = 1779840.

The previous prime is 6898739. The next prime is 6898741. The reversal of 6898740 is 478986.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (6898739) and next prime (6898741).

It is a super-2 number, since 2×6898740² = 95185227175200, which contains 22 as substring.

It is a d-powerful number, because it can be written as 6⁴ + 8³ + 9⁷ + 8⁷ + 7⁵ + 4 + 0 .

It is a junction number, because it is equal to n+sod(n) for n = 6898692 and 6898701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6898741) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6 + ... + 3714.

It is an arithmetic number, because the mean of its divisors is an integer number (415520).

Almost surely, 2^6898740 is an apocalyptic number.

6898740 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6898740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9972480).

6898740 is an abundant number, since it is smaller than the sum of its proper divisors (13046220).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6898740 is a wasteful number, since it uses less digits than its factorization.

6898740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3752 (or 3750 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 42.

The square root of 6898740 is about 2626.5452594616. The cubic root of 6898740 is about 190.3662372754.

The spelling of 6898740 in words is "six million, eight hundred ninety-eight thousand, seven hundred forty".