86409313 has 2 divisors, whose sum is σ = 86409314. Its totient is φ = 86409312.

The previous prime is 86409293. The next prime is 86409329. The reversal of 86409313 is 31390468.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 65092624 + 21316689 = 8068^2 + 4617^2 .

It is a cyclic number.

It is not a de Polignac number, because 86409313 - 2²¹ = 84312161 is a prime.

It is not a weakly prime, because it can be changed into another prime (86409373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43204656 + 43204657.

It is an arithmetic number, because the mean of its divisors is an integer number (43204657).

Almost surely, 2^86409313 is an apocalyptic number.

It is an amenable number.

86409313 is a deficient number, since it is larger than the sum of its proper divisors (1).

86409313 is an equidigital number, since it uses as much as digits as its factorization.

86409313 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 86409313 is about 9295.6609770365. The cubic root of 86409313 is about 442.0996632409.

The spelling of 86409313 in words is "eighty-six million, four hundred nine thousand, three hundred thirteen".