86797237 has 2 divisors, whose sum is σ = 86797238. Its totient is φ = 86797236.

The previous prime is 86797213. The next prime is 86797253. The reversal of 86797237 is 73279768.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 83010321 + 3786916 = 9111^2 + 1946^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86797237 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86797267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43398618 + 43398619.

It is an arithmetic number, because the mean of its divisors is an integer number (43398619).

Almost surely, 2^86797237 is an apocalyptic number.

It is an amenable number.

86797237 is a deficient number, since it is larger than the sum of its proper divisors (1).

86797237 is an equidigital number, since it uses as much as digits as its factorization.

86797237 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 889056, while the sum is 49.

The square root of 86797237 is about 9316.5034750168. The cubic root of 86797237 is about 442.7602597193.

The spelling of 86797237 in words is "eighty-six million, seven hundred ninety-seven thousand, two hundred thirty-seven".