6909898 has 8 divisors (see below), whose sum is σ = 10645092. Its totient is φ = 3361536.

The previous prime is 6909887. The next prime is 6909899. The reversal of 6909898 is 8989096.

It can be written as a sum of positive squares in 2 ways, for example, as 5212089 + 1697809 = 2283^2 + 1303^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (6909899) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46615 + ... + 46762.

Almost surely, 2^6909898 is an apocalyptic number.

6909898 is a deficient number, since it is larger than the sum of its proper divisors (3735194).

6909898 is a wasteful number, since it uses less digits than its factorization.

6909898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93416.

The product of its (nonzero) digits is 279936, while the sum is 49.

The square root of 6909898 is about 2628.6684842330. The cubic root of 6909898 is about 190.4688145735.

It can be divided in two parts, 69098 and 98, that added together give a palindrome (69196).

The spelling of 6909898 in words is "six million, nine hundred nine thousand, eight hundred ninety-eight".