86115893 has 2 divisors, whose sum is σ = 86115894. Its totient is φ = 86115892.

The previous prime is 86115889. The next prime is 86115907. The reversal of 86115893 is 39851168.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 66552964 + 19562929 = 8158^2 + 4423^2 .

It is a cyclic number.

It is not a de Polignac number, because 86115893 - 2² = 86115889 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 86115893.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86115803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43057946 + 43057947.

It is an arithmetic number, because the mean of its divisors is an integer number (43057947).

Almost surely, 2^86115893 is an apocalyptic number.

It is an amenable number.

86115893 is a deficient number, since it is larger than the sum of its proper divisors (1).

86115893 is an equidigital number, since it uses as much as digits as its factorization.

86115893 is an evil number, because the sum of its binary digits is even.

The product of its digits is 51840, while the sum is 41.

The square root of 86115893 is about 9279.8649235859. The cubic root of 86115893 is about 441.5986833221.

The spelling of 86115893 in words is "eighty-six million, one hundred fifteen thousand, eight hundred ninety-three".