23655973 has 4 divisors (see below), whose sum is σ = 25806528. Its totient is φ = 21505420.

The previous prime is 23655971. The next prime is 23656019. The reversal of 23655973 is 37955632.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23655973 - 2¹ = 23655971 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23655971) 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 3 ways as a sum of consecutive naturals, for example, 1075261 + ... + 1075282.

It is an arithmetic number, because the mean of its divisors is an integer number (6451632).

Almost surely, 2^23655973 is an apocalyptic number.

It is an amenable number.

23655973 is a deficient number, since it is larger than the sum of its proper divisors (2150555).

23655973 is a wasteful number, since it uses less digits than its factorization.

23655973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2150554.

The product of its digits is 170100, while the sum is 40.

The square root of 23655973 is about 4863.7406386443. The cubic root of 23655973 is about 287.0650178263.

It can be divided in two parts, 236559 and 73, that added together give a palindrome (236632).

The spelling of 23655973 in words is "twenty-three million, six hundred fifty-five thousand, nine hundred seventy-three".