23881894 has 4 divisors (see below), whose sum is σ = 35822844. Its totient is φ = 11940946.

The previous prime is 23881883. The next prime is 23881901. The reversal of 23881894 is 49818832.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×23881894² = 1140689722054472, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 23881894.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5970472 + ... + 5970475.

It is an arithmetic number, because the mean of its divisors is an integer number (8955711).

Almost surely, 2^23881894 is an apocalyptic number.

23881894 is a deficient number, since it is larger than the sum of its proper divisors (11940950).

23881894 is a wasteful number, since it uses less digits than its factorization.

23881894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11940949.

The product of its digits is 110592, while the sum is 43.

The square root of 23881894 is about 4886.9104759551. The cubic root of 23881894 is about 287.9759737544.

The spelling of 23881894 in words is "twenty-three million, eight hundred eighty-one thousand, eight hundred ninety-four".