90373423 has 4 divisors (see below), whose sum is σ = 103283920. Its totient is φ = 77462928.

The previous prime is 90373403. The next prime is 90373441. The reversal of 90373423 is 32437309.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32437309 = 17 ⋅1908077.

It is a cyclic number.

It is not a de Polignac number, because 90373423 - 2²⁵ = 56818991 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 (90373403) 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, 6455238 + ... + 6455251.

It is an arithmetic number, because the mean of its divisors is an integer number (25820980).

Almost surely, 2^90373423 is an apocalyptic number.

90373423 is a deficient number, since it is larger than the sum of its proper divisors (12910497).

90373423 is a wasteful number, since it uses less digits than its factorization.

90373423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12910496.

The product of its (nonzero) digits is 13608, while the sum is 31.

The square root of 90373423 is about 9506.4937279735. The cubic root of 90373423 is about 448.7594192668.

The spelling of 90373423 in words is "ninety million, three hundred seventy-three thousand, four hundred twenty-three".