80757928 has 16 divisors (see below), whose sum is σ = 151855380. Its totient is φ = 40263168.

The previous prime is 80757917. The next prime is 80757947. The reversal of 80757928 is 82975708.

It can be written as a sum of positive squares in 2 ways, for example, as 73239364 + 7518564 = 8558^2 + 2742^2 .

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, 11475 + ... + 17122.

Almost surely, 2^80757928 is an apocalyptic number.

It is an amenable number.

80757928 is a deficient number, since it is larger than the sum of its proper divisors (71097452).

80757928 is a wasteful number, since it uses less digits than its factorization.

80757928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28956 (or 28952 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 46.

The square root of 80757928 is about 8986.5414926990. The cubic root of 80757928 is about 432.2434184854.

The spelling of 80757928 in words is "eighty million, seven hundred fifty-seven thousand, nine hundred twenty-eight".