23289539 has 16 divisors (see below), whose sum is σ = 29443008. Its totient is φ = 17926272.

The previous prime is 23289533. The next prime is 23289557. The reversal of 23289539 is 93598232.

It is not a de Polignac number, because 23289539 - 2²⁴ = 6512323 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23289496 and 23289505.

It is not an unprimeable number, because it can be changed into a prime (23289533) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92 + ... + 6825.

It is an arithmetic number, because the mean of its divisors is an integer number (1840188).

Almost surely, 2^23289539 is an apocalyptic number.

23289539 is a deficient number, since it is larger than the sum of its proper divisors (6153469).

23289539 is a wasteful number, since it uses less digits than its factorization.

23289539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6974.

The product of its digits is 116640, while the sum is 41.

The square root of 23289539 is about 4825.9236421643. The cubic root of 23289539 is about 285.5750735738.

The spelling of 23289539 in words is "twenty-three million, two hundred eighty-nine thousand, five hundred thirty-nine".