86357497 has 2 divisors, whose sum is σ = 86357498. Its totient is φ = 86357496.

The previous prime is 86357477. The next prime is 86357549. The reversal of 86357497 is 79475368.

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., 74926336 + 11431161 = 8656^2 + 3381^2 .

It is a cyclic number.

It is not a de Polignac number, because 86357497 - 2²³ = 77968889 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 86357497.

It is not a weakly prime, because it can be changed into another prime (86357407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43178748 + 43178749.

It is an arithmetic number, because the mean of its divisors is an integer number (43178749).

Almost surely, 2^86357497 is an apocalyptic number.

It is an amenable number.

86357497 is a deficient number, since it is larger than the sum of its proper divisors (1).

86357497 is an equidigital number, since it uses as much as digits as its factorization.

86357497 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1270080, while the sum is 49.

The square root of 86357497 is about 9292.8734522751. The cubic root of 86357497 is about 442.0112760990.

The spelling of 86357497 in words is "eighty-six million, three hundred fifty-seven thousand, four hundred ninety-seven".