23131679 has 4 divisors (see below), whose sum is σ = 24492384. Its totient is φ = 21770976.

The previous prime is 23131651. The next prime is 23131681. The reversal of 23131679 is 97613132.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23131679 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23131609) 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, 680327 + ... + 680360.

It is an arithmetic number, because the mean of its divisors is an integer number (6123096).

Almost surely, 2^23131679 is an apocalyptic number.

23131679 is a deficient number, since it is larger than the sum of its proper divisors (1360705).

23131679 is a wasteful number, since it uses less digits than its factorization.

23131679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1360704.

The product of its digits is 6804, while the sum is 32.

The square root of 23131679 is about 4809.5404146342. The cubic root of 23131679 is about 284.9283866442.

The spelling of 23131679 in words is "twenty-three million, one hundred thirty-one thousand, six hundred seventy-nine".