86409613 has 2 divisors, whose sum is σ = 86409614. Its totient is φ = 86409612.

The previous prime is 86409607. The next prime is 86409619. The reversal of 86409613 is 31690468.

It is a balanced prime because it is at equal distance from previous prime (86409607) and next prime (86409619).

It can be written as a sum of positive squares in only one way, i.e., 86081284 + 328329 = 9278^2 + 573^2 .

It is a cyclic number.

It is not a de Polignac number, because 86409613 - 2²⁵ = 52855181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86409619) 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 as a sum of consecutive naturals, namely, 43204806 + 43204807.

It is an arithmetic number, because the mean of its divisors is an integer number (43204807).

Almost surely, 2^86409613 is an apocalyptic number.

It is an amenable number.

86409613 is a deficient number, since it is larger than the sum of its proper divisors (1).

86409613 is an equidigital number, since it uses as much as digits as its factorization.

86409613 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 86409613 is about 9295.6771135835. The cubic root of 86409613 is about 442.1001748746.

The spelling of 86409613 in words is "eighty-six million, four hundred nine thousand, six hundred thirteen".