78974532 has 72 divisors (see below), whose sum is σ = 245708736. Its totient is φ = 20827584.

The previous prime is 78974501. The next prime is 78974561. The reversal of 78974532 is 23547987.

78974532 is digitally balanced in base 9, because in such base it contains all the possibile digits an equal number of times.

78974532 is strictly pandigital in base 9.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8778 + ... + 15329.

Almost surely, 2^78974532 is an apocalyptic number.

It is an amenable number.

78974532 is an abundant number, since it is smaller than the sum of its proper divisors (166734204).

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

78974532 is a wasteful number, since it uses less digits than its factorization.

78974532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24137 (or 24132 counting only the distinct ones).

The product of its digits is 423360, while the sum is 45.

The square root of 78974532 is about 8886.7616148966. The cubic root of 78974532 is about 429.0379284118.

The spelling of 78974532 in words is "seventy-eight million, nine hundred seventy-four thousand, five hundred thirty-two".