80988757 has 2 divisors, whose sum is σ = 80988758. Its totient is φ = 80988756.

The previous prime is 80988707. The next prime is 80988781. The reversal of 80988757 is 75788908.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 80892036 + 96721 = 8994^2 + 311^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80988757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80988707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40494378 + 40494379.

It is an arithmetic number, because the mean of its divisors is an integer number (40494379).

Almost surely, 2^80988757 is an apocalyptic number.

It is an amenable number.

80988757 is a deficient number, since it is larger than the sum of its proper divisors (1).

80988757 is an equidigital number, since it uses as much as digits as its factorization.

80988757 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1128960, while the sum is 52.

The square root of 80988757 is about 8999.3753672130. The cubic root of 80988757 is about 432.6548513858.

The spelling of 80988757 in words is "eighty million, nine hundred eighty-eight thousand, seven hundred fifty-seven".