89213213 has 2 divisors, whose sum is σ = 89213214. Its totient is φ = 89213212.

The previous prime is 89213197. The next prime is 89213219. The reversal of 89213213 is 31231298.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 64432729 + 24780484 = 8027^2 + 4978^2 .

It is a cyclic number.

It is not a de Polignac number, because 89213213 - 2⁴ = 89213197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89213219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44606606 + 44606607.

It is an arithmetic number, because the mean of its divisors is an integer number (44606607).

Almost surely, 2^89213213 is an apocalyptic number.

It is an amenable number.

89213213 is a deficient number, since it is larger than the sum of its proper divisors (1).

89213213 is an equidigital number, since it uses as much as digits as its factorization.

89213213 is an evil number, because the sum of its binary digits is even.

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

The square root of 89213213 is about 9445.2746386752. The cubic root of 89213213 is about 446.8307576980.

The spelling of 89213213 in words is "eighty-nine million, two hundred thirteen thousand, two hundred thirteen".