23719231 has 4 divisors (see below), whose sum is σ = 23876464. Its totient is φ = 23562000.

The previous prime is 23719219. The next prime is 23719237. The reversal of 23719231 is 13291732.

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

It is a cyclic number.

It is not a de Polignac number, because 23719231 - 2⁷ = 23719103 is a prime.

It is a super-2 number, since 2×23719231² = 1125203838462722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23719231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23719237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78390 + ... + 78691.

It is an arithmetic number, because the mean of its divisors is an integer number (5969116).

Almost surely, 2^23719231 is an apocalyptic number.

23719231 is a deficient number, since it is larger than the sum of its proper divisors (157233).

23719231 is a wasteful number, since it uses less digits than its factorization.

23719231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157232.

The product of its digits is 2268, while the sum is 28.

The square root of 23719231 is about 4870.2393165018. The cubic root of 23719231 is about 287.3206685034.

The spelling of 23719231 in words is "twenty-three million, seven hundred nineteen thousand, two hundred thirty-one".