6694400 has 60 divisors (see below), whose sum is σ = 16617612. Its totient is φ = 2672640.

The previous prime is 6694399. The next prime is 6694409. The reversal of 6694400 is 44966.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6694409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12539 + ... + 13061.

Almost surely, 2^6694400 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6694400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8308806).

6694400 is an abundant number, since it is smaller than the sum of its proper divisors (9923212).

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

6694400 is an equidigital number, since it uses as much as digits as its factorization.

6694400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 551 (or 530 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 6694400 is about 2587.3538606074. The cubic root of 6694400 is about 188.4678253758.

The spelling of 6694400 in words is "six million, six hundred ninety-four thousand, four hundred".