86345213 has 2 divisors, whose sum is σ = 86345214. Its totient is φ = 86345212.

The previous prime is 86345173. The next prime is 86345249. The reversal of 86345213 is 31254368.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 80766169 + 5579044 = 8987^2 + 2362^2 .

It is a cyclic number.

It is not a de Polignac number, because 86345213 - 2⁸ = 86344957 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 86345213.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86345263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43172606 + 43172607.

It is an arithmetic number, because the mean of its divisors is an integer number (43172607).

Almost surely, 2^86345213 is an apocalyptic number.

It is an amenable number.

86345213 is a deficient number, since it is larger than the sum of its proper divisors (1).

86345213 is an equidigital number, since it uses as much as digits as its factorization.

86345213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17280, while the sum is 32.

The square root of 86345213 is about 9292.2124921894. The cubic root of 86345213 is about 441.9903170077.

The spelling of 86345213 in words is "eighty-six million, three hundred forty-five thousand, two hundred thirteen".