86357897 has 2 divisors, whose sum is σ = 86357898. Its totient is φ = 86357896.

The previous prime is 86357879. The next prime is 86357903. The reversal of 86357897 is 79875368.

Together with previous prime (86357879) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 59845696 + 26512201 = 7736^2 + 5149^2 .

It is a cyclic number.

It is not a de Polignac number, because 86357897 - 2⁶ = 86357833 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (86357197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43178948 + 43178949.

It is an arithmetic number, because the mean of its divisors is an integer number (43178949).

Almost surely, 2^86357897 is an apocalyptic number.

It is an amenable number.

86357897 is a deficient number, since it is larger than the sum of its proper divisors (1).

86357897 is an equidigital number, since it uses as much as digits as its factorization.

86357897 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2540160, while the sum is 53.

The square root of 86357897 is about 9292.8949741187. The cubic root of 86357897 is about 442.0119585498.

The spelling of 86357897 in words is "eighty-six million, three hundred fifty-seven thousand, eight hundred ninety-seven".