80800957 has 2 divisors, whose sum is σ = 80800958. Its totient is φ = 80800956.

The previous prime is 80800927. The next prime is 80800969. The reversal of 80800957 is 75900808.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 74545956 + 6255001 = 8634^2 + 2501^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80800957 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80800927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40400478 + 40400479.

It is an arithmetic number, because the mean of its divisors is an integer number (40400479).

Almost surely, 2^80800957 is an apocalyptic number.

It is an amenable number.

80800957 is a deficient number, since it is larger than the sum of its proper divisors (1).

80800957 is an equidigital number, since it uses as much as digits as its factorization.

80800957 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20160, while the sum is 37.

The square root of 80800957 is about 8988.9352539664. The cubic root of 80800957 is about 432.3201733841.

The spelling of 80800957 in words is "eighty million, eight hundred thousand, nine hundred fifty-seven".