90233573 has 4 divisors (see below), whose sum is σ = 90485280. Its totient is φ = 89981868.

The previous prime is 90233567. The next prime is 90233593. The reversal of 90233573 is 37533209.

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: 37533209 = 7 ⋅5361887.

It is a cyclic number.

It is not a de Polignac number, because 90233573 - 2⁶ = 90233509 is a prime.

It is a super-3 number, since 3×90233573³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90233503) 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, 125315 + ... + 126032.

It is an arithmetic number, because the mean of its divisors is an integer number (22621320).

Almost surely, 2^90233573 is an apocalyptic number.

It is an amenable number.

90233573 is a deficient number, since it is larger than the sum of its proper divisors (251707).

90233573 is a wasteful number, since it uses less digits than its factorization.

90233573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251706.

The product of its (nonzero) digits is 17010, while the sum is 32.

The square root of 90233573 is about 9499.1353817071. The cubic root of 90233573 is about 448.5278194480.

The spelling of 90233573 in words is "ninety million, two hundred thirty-three thousand, five hundred seventy-three".