86597893 has 2 divisors, whose sum is σ = 86597894. Its totient is φ = 86597892.

The previous prime is 86597887. The next prime is 86597909. The reversal of 86597893 is 39879568.

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., 74080449 + 12517444 = 8607^2 + 3538^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86597893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86597293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43298946 + 43298947.

It is an arithmetic number, because the mean of its divisors is an integer number (43298947).

Almost surely, 2^86597893 is an apocalyptic number.

It is an amenable number.

86597893 is a deficient number, since it is larger than the sum of its proper divisors (1).

86597893 is an equidigital number, since it uses as much as digits as its factorization.

86597893 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3265920, while the sum is 55.

The square root of 86597893 is about 9305.7988910141. The cubic root of 86597893 is about 442.4210428669.

The spelling of 86597893 in words is "eighty-six million, five hundred ninety-seven thousand, eight hundred ninety-three".