23993937 has 24 divisors (see below), whose sum is σ = 38140128. Its totient is φ = 14534520.

The previous prime is 23993911. The next prime is 23994007. The reversal of 23993937 is 73939932.

It is not a de Polignac number, because 23993937 - 2¹² = 23989841 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23993892 and 23993901.

It is not an unprimeable number, because it can be changed into a prime (23993537) 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, 10978 + ... + 12980.

It is an arithmetic number, because the mean of its divisors is an integer number (1589172).

Almost surely, 2^23993937 is an apocalyptic number.

It is an amenable number.

23993937 is a deficient number, since it is larger than the sum of its proper divisors (14146191).

23993937 is a wasteful number, since it uses less digits than its factorization.

23993937 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2042 (or 2017 counting only the distinct ones).

The product of its digits is 275562, while the sum is 45.

The square root of 23993937 is about 4898.3606441339. The cubic root of 23993937 is about 288.4256221293.

It can be divided in two parts, 2399 and 3937, that added together give a palindrome (6336).

The spelling of 23993937 in words is "twenty-three million, nine hundred ninety-three thousand, nine hundred thirty-seven".