7656868 has 12 divisors (see below), whose sum is σ = 14187852. Its totient is φ = 3603200.

The previous prime is 7656863. The next prime is 7656877. The reversal of 7656868 is 8686567.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 5560164 + 2096704 = 2358^2 + 1448^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7656863) 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, 56233 + ... + 56368.

It is an arithmetic number, because the mean of its divisors is an integer number (1182321).

Almost surely, 2^7656868 is an apocalyptic number.

It is an amenable number.

7656868 is a deficient number, since it is larger than the sum of its proper divisors (6530984).

7656868 is a wasteful number, since it uses less digits than its factorization.

7656868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112622 (or 112620 counting only the distinct ones).

The product of its digits is 483840, while the sum is 46.

The square root of 7656868 is about 2767.1046239707. The cubic root of 7656868 is about 197.0986819535.

It can be divided in two parts, 76568 and 68, that added together give a triangular number (76636 = T₃₉₁).

The spelling of 7656868 in words is "seven million, six hundred fifty-six thousand, eight hundred sixty-eight".