78928492 has 6 divisors (see below), whose sum is σ = 138124868. Its totient is φ = 39464244.

The previous prime is 78928483. The next prime is 78928513. The reversal of 78928492 is 29482987.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 9866058 + ... + 9866065.

Almost surely, 2^78928492 is an apocalyptic number.

It is an amenable number.

78928492 is a deficient number, since it is larger than the sum of its proper divisors (59196376).

78928492 is a wasteful number, since it uses less digits than its factorization.

78928492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19732127 (or 19732125 counting only the distinct ones).

The product of its digits is 580608, while the sum is 49.

The square root of 78928492 is about 8884.1708673348. The cubic root of 78928492 is about 428.9545397318.

It can be divided in two parts, 7892 and 8492, that added together give a 14-th power (16384 = 2¹⁴).

The spelling of 78928492 in words is "seventy-eight million, nine hundred twenty-eight thousand, four hundred ninety-two".