23893813 has 8 divisors (see below), whose sum is σ = 24507648. Its totient is φ = 23284464.

The previous prime is 23893801. The next prime is 23893817. The reversal of 23893813 is 31839832.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23893813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23893817) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11395 + ... + 13327.

It is an arithmetic number, because the mean of its divisors is an integer number (3063456).

Almost surely, 2^23893813 is an apocalyptic number.

It is an amenable number.

23893813 is a deficient number, since it is larger than the sum of its proper divisors (613835).

23893813 is a wasteful number, since it uses less digits than its factorization.

23893813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2243.

The product of its digits is 31104, while the sum is 37.

The square root of 23893813 is about 4888.1298059687. The cubic root of 23893813 is about 288.0238735675.

The spelling of 23893813 in words is "twenty-three million, eight hundred ninety-three thousand, eight hundred thirteen".