23321739 has 16 divisors (see below), whose sum is σ = 37628928. Its totient is φ = 12542592.

The previous prime is 23321737. The next prime is 23321741. The reversal of 23321739 is 93712332.

It is an interprime number because it is at equal distance from previous prime (23321737) and next prime (23321741).

It is not a de Polignac number, because 23321739 - 2¹ = 23321737 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23321737) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32307 + ... + 33020.

It is an arithmetic number, because the mean of its divisors is an integer number (2351808).

Almost surely, 2^23321739 is an apocalyptic number.

23321739 is a deficient number, since it is larger than the sum of its proper divisors (14307189).

23321739 is a wasteful number, since it uses less digits than its factorization.

23321739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65354.

The product of its digits is 6804, while the sum is 30.

The square root of 23321739 is about 4829.2586387561. The cubic root of 23321739 is about 285.7066245208.

The spelling of 23321739 in words is "twenty-three million, three hundred twenty-one thousand, seven hundred thirty-nine".