78672392 has 32 divisors (see below), whose sum is σ = 151048800. Its totient is φ = 38404224.

The previous prime is 78672383. The next prime is 78672401. The reversal of 78672392 is 29327687.

It is an interprime number because it is at equal distance from previous prime (78672383) and next prime (78672401).

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, 61859 + ... + 63117.

It is an arithmetic number, because the mean of its divisors is an integer number (4720275).

Almost surely, 2^78672392 is an apocalyptic number.

It is an amenable number.

78672392 is a deficient number, since it is larger than the sum of its proper divisors (72376408).

78672392 is a wasteful number, since it uses less digits than its factorization.

78672392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1445 (or 1441 counting only the distinct ones).

The product of its digits is 254016, while the sum is 44.

The square root of 78672392 is about 8869.7458813655. The cubic root of 78672392 is about 428.4900927976.

The spelling of 78672392 in words is "seventy-eight million, six hundred seventy-two thousand, three hundred ninety-two".