23913997 has 8 divisors (see below), whose sum is σ = 25297344. Its totient is φ = 22559328.

The previous prime is 23913991. The next prime is 23914001. The reversal of 23913997 is 79931932.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23913997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23913991) 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 7 ways as a sum of consecutive naturals, for example, 5443 + ... + 8800.

It is an arithmetic number, because the mean of its divisors is an integer number (3162168).

Almost surely, 2^23913997 is an apocalyptic number.

It is an amenable number.

23913997 is a deficient number, since it is larger than the sum of its proper divisors (1383347).

23913997 is a wasteful number, since it uses less digits than its factorization.

23913997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14339.

The product of its digits is 91854, while the sum is 43.

The square root of 23913997 is about 4890.1939634334. The cubic root of 23913997 is about 288.1049522646.

The spelling of 23913997 in words is "twenty-three million, nine hundred thirteen thousand, nine hundred ninety-seven".