86136497 has 2 divisors, whose sum is σ = 86136498. Its totient is φ = 86136496.

The previous prime is 86136469. The next prime is 86136499. The reversal of 86136497 is 79463168.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 80712256 + 5424241 = 8984^2 + 2329^2 .

It is a cyclic number.

It is not a de Polignac number, because 86136497 - 2¹⁶ = 86070961 is a prime.

It is a super-2 number, since 2×86136497² = 14838992230862018, which contains 22 as substring.

Together with 86136499, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (86136499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43068248 + 43068249.

It is an arithmetic number, because the mean of its divisors is an integer number (43068249).

Almost surely, 2^86136497 is an apocalyptic number.

It is an amenable number.

86136497 is a deficient number, since it is larger than the sum of its proper divisors (1).

86136497 is an equidigital number, since it uses as much as digits as its factorization.

86136497 is an evil number, because the sum of its binary digits is even.

The product of its digits is 217728, while the sum is 44.

The square root of 86136497 is about 9280.9750026600. The cubic root of 86136497 is about 441.6338993293.

The spelling of 86136497 in words is "eighty-six million, one hundred thirty-six thousand, four hundred ninety-seven".