78616432 has 20 divisors (see below), whose sum is σ = 161279856. Its totient is φ = 36995840.

The previous prime is 78616399. The next prime is 78616457. The reversal of 78616432 is 23461687.

It is a junction number, because it is equal to n+sod(n) for n = 78616391 and 78616400.

It is a congruent number.

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, 144244 + ... + 144787.

Almost surely, 2^78616432 is an apocalyptic number.

It is an amenable number.

78616432 is an abundant number, since it is smaller than the sum of its proper divisors (82663424).

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

78616432 is a wasteful number, since it uses less digits than its factorization.

78616432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289056 (or 289050 counting only the distinct ones).

The product of its digits is 48384, while the sum is 37.

The square root of 78616432 is about 8866.5907766176. The cubic root of 78616432 is about 428.3884731039.

The spelling of 78616432 in words is "seventy-eight million, six hundred sixteen thousand, four hundred thirty-two".