23865413 has 16 divisors (see below), whose sum is σ = 28242816. Its totient is φ = 19880640.

The previous prime is 23865383. The next prime is 23865437. The reversal of 23865413 is 31456832.

It is not a de Polignac number, because 23865413 - 2¹² = 23861317 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 23865413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23865493) 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, 21920 + ... + 22982.

It is an arithmetic number, because the mean of its divisors is an integer number (1765176).

Almost surely, 2^23865413 is an apocalyptic number.

It is an amenable number.

23865413 is a deficient number, since it is larger than the sum of its proper divisors (4377403).

23865413 is a wasteful number, since it uses less digits than its factorization.

23865413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1244.

The product of its digits is 17280, while the sum is 32.

The square root of 23865413 is about 4885.2239457368. The cubic root of 23865413 is about 287.9097140150.

The spelling of 23865413 in words is "twenty-three million, eight hundred sixty-five thousand, four hundred thirteen".