23997699 has 24 divisors (see below), whose sum is σ = 38019072. Its totient is φ = 14465520.

The previous prime is 23997691. The next prime is 23997709. The reversal of 23997699 is 99679932.

It is not a de Polignac number, because 23997699 - 2³ = 23997691 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23997691) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21534 + ... + 22620.

It is an arithmetic number, because the mean of its divisors is an integer number (1584128).

Almost surely, 2^23997699 is an apocalyptic number.

23997699 is a deficient number, since it is larger than the sum of its proper divisors (14021373).

23997699 is a wasteful number, since it uses less digits than its factorization.

23997699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1327 (or 1324 counting only the distinct ones).

The product of its digits is 1653372, while the sum is 54.

The square root of 23997699 is about 4898.7446351081. The cubic root of 23997699 is about 288.4406953884.

The spelling of 23997699 in words is "twenty-three million, nine hundred ninety-seven thousand, six hundred ninety-nine".