78672152 has 16 divisors (see below), whose sum is σ = 158857440. Its totient is φ = 36310176.

The previous prime is 78672133. The next prime is 78672163. The reversal of 78672152 is 25127687.

It is a super-2 number, since 2×78672152² = 12378615000622208, which contains 22 as substring.

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, 378128 + ... + 378335.

It is an arithmetic number, because the mean of its divisors is an integer number (9928590).

Almost surely, 2^78672152 is an apocalyptic number.

It is an amenable number.

78672152 is an abundant number, since it is smaller than the sum of its proper divisors (80185288).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

78672152 is a wasteful number, since it uses less digits than its factorization.

78672152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 756482 (or 756478 counting only the distinct ones).

The product of its digits is 47040, while the sum is 38.

The square root of 78672152 is about 8869.7323522190. The cubic root of 78672152 is about 428.4896570762.

The spelling of 78672152 in words is "seventy-eight million, six hundred seventy-two thousand, one hundred fifty-two".