23989329 has 48 divisors (see below), whose sum is σ = 45182592. Its totient is φ = 11902464.

The previous prime is 23989309. The next prime is 23989331. The reversal of 23989329 is 92398932.

It is not a de Polignac number, because 23989329 - 2¹¹ = 23987281 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (23989309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13062 + ... + 14784.

It is an arithmetic number, because the mean of its divisors is an integer number (941304).

Almost surely, 2^23989329 is an apocalyptic number.

It is an amenable number.

23989329 is a deficient number, since it is larger than the sum of its proper divisors (21193263).

23989329 is a wasteful number, since it uses less digits than its factorization.

23989329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1766 (or 1763 counting only the distinct ones).

The product of its digits is 209952, while the sum is 45.

The square root of 23989329 is about 4897.8902601018. The cubic root of 23989329 is about 288.4071570429.

The spelling of 23989329 in words is "twenty-three million, nine hundred eighty-nine thousand, three hundred twenty-nine".