23523971 has 16 divisors (see below), whose sum is σ = 25855200. Its totient is φ = 21312000.

The previous prime is 23523961. The next prime is 23524013. The reversal of 23523971 is 17932532.

It is a de Polignac number, because none of the positive numbers 2^k-23523971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23523931) 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, 93596 + ... + 93846.

It is an arithmetic number, because the mean of its divisors is an integer number (1615950).

Almost surely, 2^23523971 is an apocalyptic number.

23523971 is a deficient number, since it is larger than the sum of its proper divisors (2331229).

23523971 is a wasteful number, since it uses less digits than its factorization.

23523971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 454.

The product of its digits is 11340, while the sum is 32.

The square root of 23523971 is about 4850.1516471137. The cubic root of 23523971 is about 286.5300738897.

The spelling of 23523971 in words is "twenty-three million, five hundred twenty-three thousand, nine hundred seventy-one".