23527489 has 4 divisors (see below), whose sum is σ = 23926320. Its totient is φ = 23128660.

The previous prime is 23527477. The next prime is 23527499. The reversal of 23527489 is 98472532.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23527489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23527409) 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, 199327 + ... + 199444.

It is an arithmetic number, because the mean of its divisors is an integer number (5981580).

Almost surely, 2^23527489 is an apocalyptic number.

It is an amenable number.

23527489 is a deficient number, since it is larger than the sum of its proper divisors (398831).

23527489 is an equidigital number, since it uses as much as digits as its factorization.

23527489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398830.

The product of its digits is 120960, while the sum is 40.

The square root of 23527489 is about 4850.5143026281. The cubic root of 23527489 is about 286.5443566619.

The spelling of 23527489 in words is "twenty-three million, five hundred twenty-seven thousand, four hundred eighty-nine".