78525964 has 24 divisors (see below), whose sum is σ = 151377408. Its totient is φ = 35345040.

The previous prime is 78525901. The next prime is 78525977. The reversal of 78525964 is 46952587.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4132 + ... + 13195.

It is an arithmetic number, because the mean of its divisors is an integer number (6307392).

Almost surely, 2^78525964 is an apocalyptic number.

It is an amenable number.

78525964 is a deficient number, since it is larger than the sum of its proper divisors (72851444).

78525964 is a wasteful number, since it uses less digits than its factorization.

78525964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17445 (or 17443 counting only the distinct ones).

The product of its digits is 604800, while the sum is 46.

The square root of 78525964 is about 8861.4876854849. The cubic root of 78525964 is about 428.2240870976.

The spelling of 78525964 in words is "seventy-eight million, five hundred twenty-five thousand, nine hundred sixty-four".