23989533 has 24 divisors (see below), whose sum is σ = 35771328. Its totient is φ = 14249088.

The previous prime is 23989523. The next prime is 23989541. The reversal of 23989533 is 33598932.

It is not a de Polignac number, because 23989533 - 2⁴ = 23989517 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23989513) 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 23 ways as a sum of consecutive naturals, for example, 17760 + ... + 19062.

It is an arithmetic number, because the mean of its divisors is an integer number (1490472).

Almost surely, 2^23989533 is an apocalyptic number.

It is an amenable number.

23989533 is a deficient number, since it is larger than the sum of its proper divisors (11781795).

23989533 is a wasteful number, since it uses less digits than its factorization.

23989533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1361 (or 1342 counting only the distinct ones).

The product of its digits is 174960, while the sum is 42.

The square root of 23989533 is about 4897.9110853506. The cubic root of 23989533 is about 288.4079745577.

The spelling of 23989533 in words is "twenty-three million, nine hundred eighty-nine thousand, five hundred thirty-three".