78969528 has 48 divisors (see below), whose sum is σ = 233321400. Its totient is φ = 23929920.

The previous prime is 78969521. The next prime is 78969559. The reversal of 78969528 is 82596987.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78969521) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49063 + ... + 50646.

Almost surely, 2^78969528 is an apocalyptic number.

It is an amenable number.

78969528 is an abundant number, since it is smaller than the sum of its proper divisors (154351872).

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

78969528 is a wasteful number, since it uses less digits than its factorization.

78969528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99732 (or 99725 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 54.

The square root of 78969528 is about 8886.4800680584. The cubic root of 78969528 is about 429.0288666249.

It can be divided in two parts, 78969 and 528, that added together give a palindrome (79497).

The spelling of 78969528 in words is "seventy-eight million, nine hundred sixty-nine thousand, five hundred twenty-eight".