90423023 has 8 divisors (see below), whose sum is σ = 92854608. Its totient is φ = 88006464.

The previous prime is 90423019. The next prime is 90423037. The reversal of 90423023 is 32032409.

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

It is a cyclic number.

It is not a de Polignac number, because 90423023 - 2² = 90423019 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 90423023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90423043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9011 + ... + 16187.

It is an arithmetic number, because the mean of its divisors is an integer number (11606826).

Almost surely, 2^90423023 is an apocalyptic number.

90423023 is a deficient number, since it is larger than the sum of its proper divisors (2431585).

90423023 is a wasteful number, since it uses less digits than its factorization.

90423023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7513.

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 90423023 is about 9509.1021132387. The cubic root of 90423023 is about 448.8415023823.

The spelling of 90423023 in words is "ninety million, four hundred twenty-three thousand, twenty-three".