78570732 has 12 divisors (see below), whose sum is σ = 183331736. Its totient is φ = 26190240.

The previous prime is 78570697. The next prime is 78570763. The reversal of 78570732 is 23707587.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

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, 3273769 + ... + 3273792.

Almost surely, 2^78570732 is an apocalyptic number.

It is an amenable number.

78570732 is an abundant number, since it is smaller than the sum of its proper divisors (104761004).

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

78570732 is a wasteful number, since it uses less digits than its factorization.

78570732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6547568 (or 6547566 counting only the distinct ones).

The product of its (nonzero) digits is 82320, while the sum is 39.

The square root of 78570732 is about 8864.0133122644. The cubic root of 78570732 is about 428.3054491211.

It can be divided in two parts, 785 and 70732, that added together give a palindrome (71517).

The spelling of 78570732 in words is "seventy-eight million, five hundred seventy thousand, seven hundred thirty-two".