90089933 has 4 divisors (see below), whose sum is σ = 90149280. Its totient is φ = 90030588.

The previous prime is 90089927. The next prime is 90089939. The reversal of 90089933 is 33998009.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (90089927) and next prime (90089939).

It is a cyclic number.

It is not a de Polignac number, because 90089933 - 2⁶ = 90089869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90089939) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27335 + ... + 30452.

It is an arithmetic number, because the mean of its divisors is an integer number (22537320).

Almost surely, 2^90089933 is an apocalyptic number.

It is an amenable number.

90089933 is a deficient number, since it is larger than the sum of its proper divisors (59347).

90089933 is a wasteful number, since it uses less digits than its factorization.

90089933 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59346.

The product of its (nonzero) digits is 52488, while the sum is 41.

The square root of 90089933 is about 9491.5716822874. The cubic root of 90089933 is about 448.2896939170.

The spelling of 90089933 in words is "ninety million, eighty-nine thousand, nine hundred thirty-three".