23998971 has 16 divisors (see below), whose sum is σ = 32483360. Its totient is φ = 15759360.

The previous prime is 23998967. The next prime is 23998987. The reversal of 23998971 is 17989932.

It is not a de Polignac number, because 23998971 - 2² = 23998967 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23998971.

It is not an unprimeable number, because it can be changed into a prime (23978971) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 104685 + ... + 104913.

It is an arithmetic number, because the mean of its divisors is an integer number (2030210).

Almost surely, 2^23998971 is an apocalyptic number.

23998971 is a deficient number, since it is larger than the sum of its proper divisors (8484389).

23998971 is a wasteful number, since it uses less digits than its factorization.

23998971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 606.

The product of its digits is 244944, while the sum is 48.

The square root of 23998971 is about 4898.8744625679. The cubic root of 23998971 is about 288.4457915725.

The spelling of 23998971 in words is "twenty-three million, nine hundred ninety-eight thousand, nine hundred seventy-one".