90575833 has 4 divisors (see below), whose sum is σ = 90849808. Its totient is φ = 90301860.

The previous prime is 90575819. The next prime is 90575873. The reversal of 90575833 is 33857509.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 33857509 = 7 ⋅4836787.

It is a cyclic number.

It is not a de Polignac number, because 90575833 - 2⁵ = 90575801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90575803) 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, 136491 + ... + 137152.

It is an arithmetic number, because the mean of its divisors is an integer number (22712452).

Almost surely, 2^90575833 is an apocalyptic number.

It is an amenable number.

90575833 is a deficient number, since it is larger than the sum of its proper divisors (273975).

90575833 is a wasteful number, since it uses less digits than its factorization.

90575833 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273974.

The product of its (nonzero) digits is 113400, while the sum is 40.

The square root of 90575833 is about 9517.1336546252. The cubic root of 90575833 is about 449.0941993451.

The spelling of 90575833 in words is "ninety million, five hundred seventy-five thousand, eight hundred thirty-three".