78064216 has 16 divisors (see below), whose sum is σ = 148433040. Its totient is φ = 38482080.

The previous prime is 78064199. The next prime is 78064223. The reversal of 78064216 is 61246087.

It is a congruent number.

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, 68151 + ... + 69286.

It is an arithmetic number, because the mean of its divisors is an integer number (9277065).

Almost surely, 2^78064216 is an apocalyptic number.

It is an amenable number.

78064216 is a deficient number, since it is larger than the sum of its proper divisors (70368824).

78064216 is a wasteful number, since it uses less digits than its factorization.

78064216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137514 (or 137510 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 78064216 is about 8835.3956334734. The cubic root of 78064216 is about 427.3830894471.

The spelling of 78064216 in words is "seventy-eight million, sixty-four thousand, two hundred sixteen".