23923155 has 16 divisors (see below), whose sum is σ = 38342304. Its totient is φ = 12737280.

The previous prime is 23923153. The next prime is 23923177. The reversal of 23923155 is 55132932.

It is not a de Polignac number, because 23923155 - 2¹ = 23923153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23923153) 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 15 ways as a sum of consecutive naturals, for example, 11925 + ... + 13785.

It is an arithmetic number, because the mean of its divisors is an integer number (2396394).

Almost surely, 2^23923155 is an apocalyptic number.

23923155 is a deficient number, since it is larger than the sum of its proper divisors (14419149).

23923155 is a wasteful number, since it uses less digits than its factorization.

23923155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2726.

The product of its digits is 8100, while the sum is 30.

The square root of 23923155 is about 4891.1302374809. The cubic root of 23923155 is about 288.1417247096.

The spelling of 23923155 in words is "twenty-three million, nine hundred twenty-three thousand, one hundred fifty-five".