90033994 has 8 divisors (see below), whose sum is σ = 135414180. Its totient is φ = 44895936.

The previous prime is 90033967. The next prime is 90034003. The reversal of 90033994 is 49933009.

It can be written as a sum of positive squares in 2 ways, for example, as 88115769 + 1918225 = 9387^2 + 1385^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×90033994² = 16212240151184072, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59599 + ... + 61090.

Almost surely, 2^90033994 is an apocalyptic number.

90033994 is a deficient number, since it is larger than the sum of its proper divisors (45380186).

90033994 is a wasteful number, since it uses less digits than its factorization.

90033994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121064.

The product of its (nonzero) digits is 26244, while the sum is 37.

The square root of 90033994 is about 9488.6244524694. The cubic root of 90033994 is about 448.1968900989.

The spelling of 90033994 in words is "ninety million, thirty-three thousand, nine hundred ninety-four".