23722349 has 4 divisors (see below), whose sum is σ = 27111264. Its totient is φ = 20333436.

The previous prime is 23722343. The next prime is 23722367. The reversal of 23722349 is 94322732.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23722349 - 2⁸ = 23722093 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 (23722343) 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, 1694447 + ... + 1694460.

It is an arithmetic number, because the mean of its divisors is an integer number (6777816).

Almost surely, 2^23722349 is an apocalyptic number.

It is an amenable number.

23722349 is a deficient number, since it is larger than the sum of its proper divisors (3388915).

23722349 is an equidigital number, since it uses as much as digits as its factorization.

23722349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3388914.

The product of its digits is 18144, while the sum is 32.

The square root of 23722349 is about 4870.5594134555. The cubic root of 23722349 is about 287.3332578181. Note that the first 3 decimals are identical.

The spelling of 23722349 in words is "twenty-three million, seven hundred twenty-two thousand, three hundred forty-nine".