78536396 has 12 divisors (see below), whose sum is σ = 145523448. Its totient is φ = 36958272.

The previous prime is 78536387. The next prime is 78536401. The reversal of 78536396 is 69363587.

It is a self number, because there is not a number n which added to its sum of digits gives 78536396.

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, 577406 + ... + 577541.

It is an arithmetic number, because the mean of its divisors is an integer number (12126954).

Almost surely, 2^78536396 is an apocalyptic number.

It is an amenable number.

78536396 is a deficient number, since it is larger than the sum of its proper divisors (66987052).

78536396 is a wasteful number, since it uses less digits than its factorization.

78536396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1154968 (or 1154966 counting only the distinct ones).

The product of its digits is 816480, while the sum is 47.

The square root of 78536396 is about 8862.0762804210. The cubic root of 78536396 is about 428.2430491310.

The spelling of 78536396 in words is "seventy-eight million, five hundred thirty-six thousand, three hundred ninety-six".