78598916 has 12 divisors (see below), whose sum is σ = 150052560. Its totient is φ = 35726760.

The previous prime is 78598901. The next prime is 78598921. The reversal of 78598916 is 61989587.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 893126 + ... + 893213.

It is an arithmetic number, because the mean of its divisors is an integer number (12504380).

Almost surely, 2^78598916 is an apocalyptic number.

It is an amenable number.

78598916 is a deficient number, since it is larger than the sum of its proper divisors (71453644).

78598916 is a wasteful number, since it uses less digits than its factorization.

78598916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1786354 (or 1786352 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 53.

The square root of 78598916 is about 8865.6029687777. The cubic root of 78598916 is about 428.3566552865.

The spelling of 78598916 in words is "seventy-eight million, five hundred ninety-eight thousand, nine hundred sixteen".