78976650 has 24 divisors (see below), whose sum is σ = 195862464. Its totient is φ = 21060400.

The previous prime is 78976643. The next prime is 78976669. The reversal of 78976650 is 5667987.

It is a super-2 number, since 2×78976650² = 12474622490445000, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 78976650.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 263106 + ... + 263405.

It is an arithmetic number, because the mean of its divisors is an integer number (8160936).

Almost surely, 2^78976650 is an apocalyptic number.

78976650 is an abundant number, since it is smaller than the sum of its proper divisors (116885814).

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

78976650 is a wasteful number, since it uses less digits than its factorization.

78976650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526526 (or 526521 counting only the distinct ones).

The product of its (nonzero) digits is 635040, while the sum is 48.

The square root of 78976650 is about 8886.8807801163. The cubic root of 78976650 is about 429.0417638010.

The spelling of 78976650 in words is "seventy-eight million, nine hundred seventy-six thousand, six hundred fifty".