80237897 has 2 divisors, whose sum is σ = 80237898. Its totient is φ = 80237896.

The previous prime is 80237887. The next prime is 80237921. The reversal of 80237897 is 79873208.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52475536 + 27762361 = 7244^2 + 5269^2 .

It is a cyclic number.

It is not a de Polignac number, because 80237897 - 2¹² = 80233801 is a prime.

It is a super-2 number, since 2×80237897² = 12876240229965218, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (80237837) 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, 40118948 + 40118949.

It is an arithmetic number, because the mean of its divisors is an integer number (40118949).

Almost surely, 2^80237897 is an apocalyptic number.

It is an amenable number.

80237897 is a deficient number, since it is larger than the sum of its proper divisors (1).

80237897 is an equidigital number, since it uses as much as digits as its factorization.

80237897 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 169344, while the sum is 44.

The square root of 80237897 is about 8957.5608845265. The cubic root of 80237897 is about 431.3136266269.

The spelling of 80237897 in words is "eighty million, two hundred thirty-seven thousand, eight hundred ninety-seven".