23861913 has 4 divisors (see below), whose sum is σ = 31815888. Its totient is φ = 15907940.

The previous prime is 23861911. The next prime is 23861917. The reversal of 23861913 is 31916832.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23861913 - 2¹ = 23861911 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23861911) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3976983 + ... + 3976988.

It is an arithmetic number, because the mean of its divisors is an integer number (7953972).

Almost surely, 2^23861913 is an apocalyptic number.

It is an amenable number.

23861913 is a deficient number, since it is larger than the sum of its proper divisors (7953975).

23861913 is an equidigital number, since it uses as much as digits as its factorization.

23861913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7953974.

The product of its digits is 7776, while the sum is 33.

The square root of 23861913 is about 4884.8657095155. The cubic root of 23861913 is about 287.8956387888.

The spelling of 23861913 in words is "twenty-three million, eight hundred sixty-one thousand, nine hundred thirteen".