80686037 has 2 divisors, whose sum is σ = 80686038. Its totient is φ = 80686036.

The previous prime is 80686019. The next prime is 80686049. The reversal of 80686037 is 73068608.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 68790436 + 11895601 = 8294^2 + 3449^2 .

It is a cyclic number.

It is not a de Polignac number, because 80686037 - 2²⁰ = 79637461 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 (80686057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40343018 + 40343019.

It is an arithmetic number, because the mean of its divisors is an integer number (40343019).

Almost surely, 2^80686037 is an apocalyptic number.

It is an amenable number.

80686037 is a deficient number, since it is larger than the sum of its proper divisors (1).

80686037 is an equidigital number, since it uses as much as digits as its factorization.

80686037 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 80686037 is about 8982.5406762230. The cubic root of 80686037 is about 432.1151188547.

The spelling of 80686037 in words is "eighty million, six hundred eighty-six thousand, thirty-seven".