86136757 has 12 divisors (see below), whose sum is σ = 103656780. Its totient is φ = 71284416.

The previous prime is 86136727. The next prime is 86136761. The reversal of 86136757 is 75763168.

It can be written as a sum of positive squares in 2 ways, for example, as 22791076 + 63345681 = 4774^2 + 7959^2 .

It is not a de Polignac number, because 86136757 - 2¹⁵ = 86103989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86136707) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28888 + ... + 31729.

It is an arithmetic number, because the mean of its divisors is an integer number (8638065).

Almost surely, 2^86136757 is an apocalyptic number.

It is an amenable number.

86136757 is a deficient number, since it is larger than the sum of its proper divisors (17520023).

86136757 is a wasteful number, since it uses less digits than its factorization.

86136757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60660 (or 60653 counting only the distinct ones).

The product of its digits is 211680, while the sum is 43.

The square root of 86136757 is about 9280.9890097985. The cubic root of 86136757 is about 441.6343436810.

The spelling of 86136757 in words is "eighty-six million, one hundred thirty-six thousand, seven hundred fifty-seven".