23899797 has 12 divisors (see below), whose sum is σ = 34614060. Its totient is φ = 15890688.

The previous prime is 23899789. The next prime is 23899823. The reversal of 23899797 is 79799832.

It can be written as a sum of positive squares in 2 ways, for example, as 18096516 + 5803281 = 4254^2 + 2409^2 .

It is not a de Polignac number, because 23899797 - 2³ = 23899789 is a prime.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23899727) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 229 + ... + 6917.

It is an arithmetic number, because the mean of its divisors is an integer number (2884505).

Almost surely, 2^23899797 is an apocalyptic number.

It is an amenable number.

23899797 is a deficient number, since it is larger than the sum of its proper divisors (10714263).

23899797 is a wasteful number, since it uses less digits than its factorization.

23899797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7092 (or 7089 counting only the distinct ones).

The product of its digits is 1714608, while the sum is 54.

The square root of 23899797 is about 4888.7418626882. The cubic root of 23899797 is about 288.0479159280.

The spelling of 23899797 in words is "twenty-three million, eight hundred ninety-nine thousand, seven hundred ninety-seven".