23682381 has 4 divisors (see below), whose sum is σ = 31576512. Its totient is φ = 15788252.

The previous prime is 23682371. The next prime is 23682389. The reversal of 23682381 is 18328632.

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 23682381 - 2⁶ = 23682317 is a prime.

It is a super-2 number, since 2×23682381² = 1121710339658322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23682389) 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, 3947061 + ... + 3947066.

It is an arithmetic number, because the mean of its divisors is an integer number (7894128).

Almost surely, 2^23682381 is an apocalyptic number.

It is an amenable number.

23682381 is a deficient number, since it is larger than the sum of its proper divisors (7894131).

23682381 is an equidigital number, since it uses as much as digits as its factorization.

23682381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7894130.

The product of its digits is 13824, while the sum is 33.

The square root of 23682381 is about 4866.4546643321. The cubic root of 23682381 is about 287.1717983820.

The spelling of 23682381 in words is "twenty-three million, six hundred eighty-two thousand, three hundred eighty-one".