86499437 has 2 divisors, whose sum is σ = 86499438. Its totient is φ = 86499436.

The previous prime is 86499433. The next prime is 86499443. The reversal of 86499437 is 73499468.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 82700836 + 3798601 = 9094^2 + 1949^2 .

It is a cyclic number.

It is not a de Polignac number, because 86499437 - 2² = 86499433 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86499433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43249718 + 43249719.

It is an arithmetic number, because the mean of its divisors is an integer number (43249719).

Almost surely, 2^86499437 is an apocalyptic number.

It is an amenable number.

86499437 is a deficient number, since it is larger than the sum of its proper divisors (1).

86499437 is an equidigital number, since it uses as much as digits as its factorization.

86499437 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1306368, while the sum is 50.

The square root of 86499437 is about 9300.5073517524. The cubic root of 86499437 is about 442.2533115938.

The spelling of 86499437 in words is "eighty-six million, four hundred ninety-nine thousand, four hundred thirty-seven".