89899933 has 2 divisors, whose sum is σ = 89899934. Its totient is φ = 89899932.

The previous prime is 89899897. The next prime is 89899951. The reversal of 89899933 is 33999898.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 88416409 + 1483524 = 9403^2 + 1218^2 .

It is a cyclic number.

It is not a de Polignac number, because 89899933 - 2¹³ = 89891741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89899633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44949966 + 44949967.

It is an arithmetic number, because the mean of its divisors is an integer number (44949967).

Almost surely, 2^89899933 is an apocalyptic number.

It is an amenable number.

89899933 is a deficient number, since it is larger than the sum of its proper divisors (1).

89899933 is an equidigital number, since it uses as much as digits as its factorization.

89899933 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3779136, while the sum is 58.

The square root of 89899933 is about 9481.5575197327. The cubic root of 89899933 is about 447.9743239031.

The spelling of 89899933 in words is "eighty-nine million, eight hundred ninety-nine thousand, nine hundred thirty-three".