23906865 has 16 divisors (see below), whose sum is σ = 38448000. Its totient is φ = 12684672.

The previous prime is 23906863. The next prime is 23906891. The reversal of 23906865 is 56860932.

It is not a de Polignac number, because 23906865 - 2¹ = 23906863 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23906863) 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, 1020 + ... + 6989.

It is an arithmetic number, because the mean of its divisors is an integer number (2403000).

Almost surely, 2^23906865 is an apocalyptic number.

It is an amenable number.

23906865 is a deficient number, since it is larger than the sum of its proper divisors (14541135).

23906865 is a wasteful number, since it uses less digits than its factorization.

23906865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8216.

The product of its (nonzero) digits is 77760, while the sum is 39.

The square root of 23906865 is about 4889.4646946266. The cubic root of 23906865 is about 288.0763083868.

The spelling of 23906865 in words is "twenty-three million, nine hundred six thousand, eight hundred sixty-five".