78992328 has 64 divisors (see below), whose sum is σ = 202245120. Its totient is φ = 25704000.

The previous prime is 78992323. The next prime is 78992339. The reversal of 78992328 is 82329987.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (78992321) 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 15 ways as a sum of consecutive naturals, for example, 257151 + ... + 257457.

It is an arithmetic number, because the mean of its divisors is an integer number (3160080).

Almost surely, 2^78992328 is an apocalyptic number.

It is an amenable number.

78992328 is an abundant number, since it is smaller than the sum of its proper divisors (123252792).

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

78992328 is a wasteful number, since it uses less digits than its factorization.

78992328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 538 (or 534 counting only the distinct ones).

The product of its digits is 435456, while the sum is 48.

The square root of 78992328 is about 8887.7628231181. The cubic root of 78992328 is about 429.0701522412.

The spelling of 78992328 in words is "seventy-eight million, nine hundred ninety-two thousand, three hundred twenty-eight".