80800897 has 2 divisors, whose sum is σ = 80800898. Its totient is φ = 80800896.

The previous prime is 80800891. The next prime is 80800921. The reversal of 80800897 is 79800808.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49787136 + 31013761 = 7056^2 + 5569^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80800897 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (80800891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40400448 + 40400449.

It is an arithmetic number, because the mean of its divisors is an integer number (40400449).

Almost surely, 2^80800897 is an apocalyptic number.

It is an amenable number.

80800897 is a deficient number, since it is larger than the sum of its proper divisors (1).

80800897 is an equidigital number, since it uses as much as digits as its factorization.

80800897 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32256, while the sum is 40.

The square root of 80800897 is about 8988.9319165293. The cubic root of 80800897 is about 432.3200663754.

The spelling of 80800897 in words is "eighty million, eight hundred thousand, eight hundred ninety-seven".