23512971 has 4 divisors (see below), whose sum is σ = 31350632. Its totient is φ = 15675312.

The previous prime is 23512963. The next prime is 23512981. The reversal of 23512971 is 17921532.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 23512971 - 2³ = 23512963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23512961) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3918826 + ... + 3918831.

It is an arithmetic number, because the mean of its divisors is an integer number (7837658).

Almost surely, 2^23512971 is an apocalyptic number.

23512971 is a deficient number, since it is larger than the sum of its proper divisors (7837661).

23512971 is an equidigital number, since it uses as much as digits as its factorization.

23512971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7837660.

The product of its digits is 3780, while the sum is 30.

The square root of 23512971 is about 4849.0175293558. The cubic root of 23512971 is about 286.4854056630.

The spelling of 23512971 in words is "twenty-three million, five hundred twelve thousand, nine hundred seventy-one".