23907971 has 4 divisors (see below), whose sum is σ = 24947472. Its totient is φ = 22868472.

The previous prime is 23907941. The next prime is 23907979. The reversal of 23907971 is 17970932.

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

It is a cyclic number.

It is not a de Polignac number, because 23907971 - 2⁶ = 23907907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23907979) 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, 519716 + ... + 519761.

It is an arithmetic number, because the mean of its divisors is an integer number (6236868).

Almost surely, 2^23907971 is an apocalyptic number.

23907971 is a deficient number, since it is larger than the sum of its proper divisors (1039501).

23907971 is a wasteful number, since it uses less digits than its factorization.

23907971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1039500.

The product of its (nonzero) digits is 23814, while the sum is 38.

The square root of 23907971 is about 4889.5777936341. The cubic root of 23907971 is about 288.0807507298.

The spelling of 23907971 in words is "twenty-three million, nine hundred seven thousand, nine hundred seventy-one".