90433199 has 4 divisors (see below), whose sum is σ = 90547464. Its totient is φ = 90318936.

The previous prime is 90433181. The next prime is 90433201. The reversal of 90433199 is 99133409.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-90433199 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 (90430199) 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 3 ways as a sum of consecutive naturals, for example, 55937 + ... + 57530.

It is an arithmetic number, because the mean of its divisors is an integer number (22636866).

Almost surely, 2^90433199 is an apocalyptic number.

90433199 is a deficient number, since it is larger than the sum of its proper divisors (114265).

90433199 is a wasteful number, since it uses less digits than its factorization.

90433199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114264.

The product of its (nonzero) digits is 26244, while the sum is 38.

The square root of 90433199 is about 9509.6371644769. The cubic root of 90433199 is about 448.8583389491.

The spelling of 90433199 in words is "ninety million, four hundred thirty-three thousand, one hundred ninety-nine".