90633933 has 24 divisors (see below), whose sum is σ = 148410080. Its totient is φ = 52837920.

The previous prime is 90633913. The next prime is 90633937. The reversal of 90633933 is 33933609.

It is not a de Polignac number, because 90633933 - 2¹⁶ = 90568397 is a prime.

It is a super-2 number, since 2×90633933² = 16429019622096978, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90633937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18163 + ... + 22608.

Almost surely, 2^90633933 is an apocalyptic number.

It is an amenable number.

90633933 is a deficient number, since it is larger than the sum of its proper divisors (57776147).

90633933 is a wasteful number, since it uses less digits than its factorization.

90633933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40809 (or 40806 counting only the distinct ones).

The product of its (nonzero) digits is 39366, while the sum is 36.

The square root of 90633933 is about 9520.1855549144. The cubic root of 90633933 is about 449.1902028636.

It can be divided in two parts, 9063 and 3933, that added together give a square (12996 = 114²).

The spelling of 90633933 in words is "ninety million, six hundred thirty-three thousand, nine hundred thirty-three".