23290589 has 4 divisors (see below), whose sum is σ = 26617824. Its totient is φ = 19963356.

The previous prime is 23290571. The next prime is 23290633. The reversal of 23290589 is 98509232.

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.

It is not a de Polignac number, because 23290589 - 2¹⁶ = 23225053 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23290529) 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, 1663607 + ... + 1663620.

It is an arithmetic number, because the mean of its divisors is an integer number (6654456).

Almost surely, 2^23290589 is an apocalyptic number.

It is an amenable number.

23290589 is a deficient number, since it is larger than the sum of its proper divisors (3327235).

23290589 is an equidigital number, since it uses as much as digits as its factorization.

23290589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3327234.

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 23290589 is about 4826.0324284033. The cubic root of 23290589 is about 285.5793651905.

The spelling of 23290589 in words is "twenty-three million, two hundred ninety thousand, five hundred eighty-nine".