7808864 has 48 divisors (see below), whose sum is σ = 17853696. Its totient is φ = 3292800.

The previous prime is 7808839. The next prime is 7808873. The reversal of 7808864 is 4688087.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15659 + ... + 16149.

It is an arithmetic number, because the mean of its divisors is an integer number (371952).

Almost surely, 2^7808864 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 7808864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8926848).

7808864 is an abundant number, since it is smaller than the sum of its proper divisors (10044832).

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

7808864 is a wasteful number, since it uses less digits than its factorization.

7808864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 579 (or 571 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 41.

The square root of 7808864 is about 2794.4344687253. The cubic root of 7808864 is about 198.3943438381.

The spelling of 7808864 in words is "seven million, eight hundred eight thousand, eight hundred sixty-four".