23311894 has 4 divisors (see below), whose sum is σ = 34967844. Its totient is φ = 11655946.

The previous prime is 23311877. The next prime is 23311901. The reversal of 23311894 is 49811332.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5827972 + ... + 5827975.

It is an arithmetic number, because the mean of its divisors is an integer number (8741961).

Almost surely, 2^23311894 is an apocalyptic number.

23311894 is a deficient number, since it is larger than the sum of its proper divisors (11655950).

23311894 is a wasteful number, since it uses less digits than its factorization.

23311894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11655949.

The product of its digits is 5184, while the sum is 31.

The square root of 23311894 is about 4828.2392235679. The cubic root of 23311894 is about 285.6664162898. Note that the first 3 decimals are identical.

It can be divided in two parts, 2331 and 1894, that added together give a square (4225 = 65²).

The spelling of 23311894 in words is "twenty-three million, three hundred eleven thousand, eight hundred ninety-four".