90322723 has 4 divisors (see below), whose sum is σ = 90611608. Its totient is φ = 90033840.

The previous prime is 90322711. The next prime is 90322753. The reversal of 90322723 is 32722309.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 90322723 - 2⁵ = 90322691 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 90322691 and 90322700.

It is not an unprimeable number, because it can be changed into a prime (90322753) 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 3 ways as a sum of consecutive naturals, for example, 143973 + ... + 144598.

It is an arithmetic number, because the mean of its divisors is an integer number (22652902).

Almost surely, 2^90322723 is an apocalyptic number.

90322723 is a deficient number, since it is larger than the sum of its proper divisors (288885).

90322723 is a wasteful number, since it uses less digits than its factorization.

90322723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288884.

The product of its (nonzero) digits is 4536, while the sum is 28.

The square root of 90322723 is about 9503.8267555759. The cubic root of 90322723 is about 448.6754847138.

The spelling of 90322723 in words is "ninety million, three hundred twenty-two thousand, seven hundred twenty-three".