23985929 has 16 divisors (see below), whose sum is σ = 28667520. Its totient is φ = 19810560.

The previous prime is 23985893. The next prime is 23985947. The reversal of 23985929 is 92958932.

It is not a de Polignac number, because 23985929 - 2⁸ = 23985673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23985229) 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, 3212 + ... + 7634.

It is an arithmetic number, because the mean of its divisors is an integer number (1791720).

Almost surely, 2^23985929 is an apocalyptic number.

23985929 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

23985929 is a deficient number, since it is larger than the sum of its proper divisors (4681591).

23985929 is a wasteful number, since it uses less digits than its factorization.

23985929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4480.

The product of its digits is 349920, while the sum is 47.

The square root of 23985929 is about 4897.5431595852. The cubic root of 23985929 is about 288.3935311141.

It can be divided in two parts, 239 and 85929, that added together give a palindrome (86168).

The spelling of 23985929 in words is "twenty-three million, nine hundred eighty-five thousand, nine hundred twenty-nine".