90423501 has 8 divisors (see below), whose sum is σ = 137788224. Its totient is φ = 51670560.

The previous prime is 90423469. The next prime is 90423521. The reversal of 90423501 is 10532409.

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

It is not a de Polignac number, because 90423501 - 2⁵ = 90423469 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90423521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2152920 + ... + 2152961.

It is an arithmetic number, because the mean of its divisors is an integer number (17223528).

Almost surely, 2^90423501 is an apocalyptic number.

It is an amenable number.

90423501 is a deficient number, since it is larger than the sum of its proper divisors (47364723).

90423501 is a wasteful number, since it uses less digits than its factorization.

90423501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4305891.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 90423501 is about 9509.1272470190. The cubic root of 90423501 is about 448.8422932792.

The spelling of 90423501 in words is "ninety million, four hundred twenty-three thousand, five hundred one".