80739528 has 32 divisors (see below), whose sum is σ = 213723360. Its totient is φ = 25329920.

The previous prime is 80739523. The next prime is 80739541. The reversal of 80739528 is 82593708.

It is a self number, because there is not a number n which added to its sum of digits gives 80739528.

It is not an unprimeable number, because it can be changed into a prime (80739521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98538 + ... + 99353.

It is an arithmetic number, because the mean of its divisors is an integer number (6678855).

Almost surely, 2^80739528 is an apocalyptic number.

It is an amenable number.

80739528 is an abundant number, since it is smaller than the sum of its proper divisors (132983832).

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

80739528 is a wasteful number, since it uses less digits than its factorization.

80739528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197917 (or 197913 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 42.

The square root of 80739528 is about 8985.5176812469. The cubic root of 80739528 is about 432.2105883423.

The spelling of 80739528 in words is "eighty million, seven hundred thirty-nine thousand, five hundred twenty-eight".