86156613 has 6 divisors (see below), whose sum is σ = 124448454. Its totient is φ = 57437736.

The previous prime is 86156611. The next prime is 86156617. The reversal of 86156613 is 31665168.

It is a happy number.

86156613 is a `hidden beast` number, since 86 + 1 + 566 + 13 = 666.

It can be written as a sum of positive squares in only one way, i.e., 86155524 + 1089 = 9282^2 + 33^2 .

It is not a de Polignac number, because 86156613 - 2¹ = 86156611 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86156611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4786470 + ... + 4786487.

It is an arithmetic number, because the mean of its divisors is an integer number (20741409).

Almost surely, 2^86156613 is an apocalyptic number.

It is an amenable number.

86156613 is a deficient number, since it is larger than the sum of its proper divisors (38291841).

86156613 is a wasteful number, since it uses less digits than its factorization.

86156613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9572963 (or 9572960 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 86156613 is about 9282.0586617409. The cubic root of 86156613 is about 441.6682758377.

The spelling of 86156613 in words is "eighty-six million, one hundred fifty-six thousand, six hundred thirteen".