23722479 has 24 divisors (see below), whose sum is σ = 37844352. Its totient is φ = 14199120.

The previous prime is 23722421. The next prime is 23722481. The reversal of 23722479 is 97422732.

It is a de Polignac number, because none of the positive numbers 2^k-23722479 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23722379) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6774 + ... + 9660.

It is an arithmetic number, because the mean of its divisors is an integer number (1576848).

Almost surely, 2^23722479 is an apocalyptic number.

23722479 is a deficient number, since it is larger than the sum of its proper divisors (14121873).

23722479 is a wasteful number, since it uses less digits than its factorization.

23722479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2987 (or 2984 counting only the distinct ones).

The product of its digits is 42336, while the sum is 36.

The square root of 23722479 is about 4870.5727589268. The cubic root of 23722479 is about 287.3337826854. Note that the first 3 decimals are identical.

It can be divided in two parts, 2372 and 2479, that added together give a triangular number (4851 = T₉₈).

The spelling of 23722479 in words is "twenty-three million, seven hundred twenty-two thousand, four hundred seventy-nine".