86633213 has 2 divisors, whose sum is σ = 86633214. Its totient is φ = 86633212.

The previous prime is 86633201. The next prime is 86633221. The reversal of 86633213 is 31233668.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 72216004 + 14417209 = 8498^2 + 3797^2 .

It is a cyclic number.

It is not a de Polignac number, because 86633213 - 2¹⁸ = 86371069 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 86633213.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86633263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43316606 + 43316607.

It is an arithmetic number, because the mean of its divisors is an integer number (43316607).

Almost surely, 2^86633213 is an apocalyptic number.

It is an amenable number.

86633213 is a deficient number, since it is larger than the sum of its proper divisors (1).

86633213 is an equidigital number, since it uses as much as digits as its factorization.

86633213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15552, while the sum is 32.

The square root of 86633213 is about 9307.6964389692. The cubic root of 86633213 is about 442.4811836190.

The spelling of 86633213 in words is "eighty-six million, six hundred thirty-three thousand, two hundred thirteen".