78013976 has 16 divisors (see below), whose sum is σ = 152636400. Its totient is φ = 37310944.

The previous prime is 78013963. The next prime is 78013987. The reversal of 78013976 is 67931087.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 211811 + ... + 212178.

It is an arithmetic number, because the mean of its divisors is an integer number (9539775).

Almost surely, 2^78013976 is an apocalyptic number.

It is an amenable number.

78013976 is a deficient number, since it is larger than the sum of its proper divisors (74622424).

78013976 is a wasteful number, since it uses less digits than its factorization.

78013976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424018 (or 424014 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 41.

The square root of 78013976 is about 8832.5520660792. The cubic root of 78013976 is about 427.2913857388.

The spelling of 78013976 in words is "seventy-eight million, thirteen thousand, nine hundred seventy-six".