90433 has 4 divisors (see below), whose sum is σ = 103360. Its totient is φ = 77508.

The previous prime is 90407. The next prime is 90437. The reversal of 90433 is 33409.

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 a cyclic number.

It is not a de Polignac number, because 90433 - 2⁵ = 90401 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 90433.

It is not an unprimeable number, because it can be changed into a prime (90437) 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, 6453 + ... + 6466.

It is an arithmetic number, because the mean of its divisors is an integer number (25840).

2⁹⁰⁴³³ is an apocalyptic number.

It is an amenable number.

90433 is a deficient number, since it is larger than the sum of its proper divisors (12927).

90433 is a wasteful number, since it uses less digits than its factorization.

90433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12926.

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 90433 is about 300.7208007438. The cubic root of 90433 is about 44.8858009708.

Subtracting from 90433 its product of nonzero digits (324), we obtain a palindrome (90109).

The spelling of 90433 in words is "ninety thousand, four hundred thirty-three".