89312213 has 2 divisors, whose sum is σ = 89312214. Its totient is φ = 89312212.

The previous prime is 89312207. The next prime is 89312221. The reversal of 89312213 is 31221398.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 84676804 + 4635409 = 9202^2 + 2153^2 .

It is a cyclic number.

It is not a de Polignac number, because 89312213 - 2¹⁸ = 89050069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89312513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44656106 + 44656107.

It is an arithmetic number, because the mean of its divisors is an integer number (44656107).

Almost surely, 2^89312213 is an apocalyptic number.

It is an amenable number.

89312213 is a deficient number, since it is larger than the sum of its proper divisors (1).

89312213 is an equidigital number, since it uses as much as digits as its factorization.

89312213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2592, while the sum is 29.

The square root of 89312213 is about 9450.5139013707. The cubic root of 89312213 is about 446.9959794576.

The spelling of 89312213 in words is "eighty-nine million, three hundred twelve thousand, two hundred thirteen".