7881696 has 36 divisors (see below), whose sum is σ = 22414392. Its totient is φ = 2627136.

The previous prime is 7881689. The next prime is 7881701. The reversal of 7881696 is 6961887.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×7881696² = 124242263672832, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13396 + ... + 13971.

It is an arithmetic number, because the mean of its divisors is an integer number (622622).

Almost surely, 2^7881696 is an apocalyptic number.

It is an amenable number.

7881696 is an abundant number, since it is smaller than the sum of its proper divisors (14532696).

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

7881696 is a wasteful number, since it uses less digits than its factorization.

7881696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27383 (or 27372 counting only the distinct ones).

The product of its digits is 145152, while the sum is 45.

The square root of 7881696 is about 2807.4358407629. The cubic root of 7881696 is about 199.0092333451.

The spelling of 7881696 in words is "seven million, eight hundred eighty-one thousand, six hundred ninety-six".