78080672 has 12 divisors (see below), whose sum is σ = 153721386. Its totient is φ = 39040320.

The previous prime is 78080669. The next prime is 78080797. The reversal of 78080672 is 27608087.

It can be written as a sum of positive squares in only one way, i.e., 78074896 + 5776 = 8836^2 + 76^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1219979 + ... + 1220042.

Almost surely, 2^78080672 is an apocalyptic number.

It is an amenable number.

78080672 is a deficient number, since it is larger than the sum of its proper divisors (75640714).

78080672 is a wasteful number, since it uses less digits than its factorization.

78080672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2440031 (or 2440023 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 38.

The square root of 78080672 is about 8836.3268386813. The cubic root of 78080672 is about 427.4131182377.

The spelling of 78080672 in words is "seventy-eight million, eighty thousand, six hundred seventy-two".