78999532 has 24 divisors (see below), whose sum is σ = 143491712. Its totient is φ = 38016000.

The previous prime is 78999523. The next prime is 78999541. The reversal of 78999532 is 23599987.

It is an interprime number because it is at equal distance from previous prime (78999523) and next prime (78999541).

It is a self number, because there is not a number n which added to its sum of digits gives 78999532.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22282 + ... + 25582.

Almost surely, 2^78999532 is an apocalyptic number.

It is an amenable number.

78999532 is a deficient number, since it is larger than the sum of its proper divisors (64492180).

78999532 is a wasteful number, since it uses less digits than its factorization.

78999532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3529 (or 3527 counting only the distinct ones).

The product of its digits is 1224720, while the sum is 52.

The square root of 78999532 is about 8888.1680902197. The cubic root of 78999532 is about 429.0831953957.

The spelling of 78999532 in words is "seventy-eight million, nine hundred ninety-nine thousand, five hundred thirty-two".