89869933 has 2 divisors, whose sum is σ = 89869934. Its totient is φ = 89869932.

The previous prime is 89869931. The next prime is 89869937. The reversal of 89869933 is 33996898.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 87553449 + 2316484 = 9357^2 + 1522^2 .

It is a cyclic number.

It is not a de Polignac number, because 89869933 - 2¹ = 89869931 is a prime.

Together with 89869931, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89869931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44934966 + 44934967.

It is an arithmetic number, because the mean of its divisors is an integer number (44934967).

Almost surely, 2^89869933 is an apocalyptic number.

It is an amenable number.

89869933 is a deficient number, since it is larger than the sum of its proper divisors (1).

89869933 is an equidigital number, since it uses as much as digits as its factorization.

89869933 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2519424, while the sum is 55.

The square root of 89869933 is about 9479.9753691663. The cubic root of 89869933 is about 447.9244880302.

The spelling of 89869933 in words is "eighty-nine million, eight hundred sixty-nine thousand, nine hundred thirty-three".