78392056 has 16 divisors (see below), whose sum is σ = 151727040. Its totient is φ = 37931520.

The previous prime is 78392051. The next prime is 78392063. The reversal of 78392056 is 65029387.

It is a super-2 number, since 2×78392056² = 12290628887814272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78392051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 157801 + ... + 158296.

It is an arithmetic number, because the mean of its divisors is an integer number (9482940).

Almost surely, 2^78392056 is an apocalyptic number.

It is an amenable number.

78392056 is a deficient number, since it is larger than the sum of its proper divisors (73334984).

78392056 is a wasteful number, since it uses less digits than its factorization.

78392056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316134 (or 316130 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 78392056 is about 8853.9288454335. The cubic root of 78392056 is about 427.9805359885.

The spelling of 78392056 in words is "seventy-eight million, three hundred ninety-two thousand, fifty-six".