23879381 has 4 divisors (see below), whose sum is σ = 23957472. Its totient is φ = 23801292.

The previous prime is 23879377. The next prime is 23879389. The reversal of 23879381 is 18397832.

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 23879381 - 2² = 23879377 is a prime.

It is a super-2 number, since 2×23879381² = 1140449673886322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23879389) 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, 38585 + ... + 39198.

It is an arithmetic number, because the mean of its divisors is an integer number (5989368).

Almost surely, 2^23879381 is an apocalyptic number.

It is an amenable number.

23879381 is a deficient number, since it is larger than the sum of its proper divisors (78091).

23879381 is an equidigital number, since it uses as much as digits as its factorization.

23879381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78090.

The product of its digits is 72576, while the sum is 41.

The square root of 23879381 is about 4886.6533537790. The cubic root of 23879381 is about 287.9658725315.

The spelling of 23879381 in words is "twenty-three million, eight hundred seventy-nine thousand, three hundred eighty-one".