77914860 has 24 divisors (see below), whose sum is σ = 218161776. Its totient is φ = 20777280.

The previous prime is 77914849. The next prime is 77914897. The reversal of 77914860 is 6841977.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 649231 + ... + 649350.

It is an arithmetic number, because the mean of its divisors is an integer number (9090074).

Almost surely, 2^77914860 is an apocalyptic number.

It is an amenable number.

77914860 is an abundant number, since it is smaller than the sum of its proper divisors (140246916).

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

77914860 is a wasteful number, since it uses less digits than its factorization.

77914860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1298593 (or 1298591 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 42.

The square root of 77914860 is about 8826.9394469431. The cubic root of 77914860 is about 427.1103525295.

The spelling of 77914860 in words is "seventy-seven million, nine hundred fourteen thousand, eight hundred sixty".