23996729 has 6 divisors (see below), whose sum is σ = 24400350. Its totient is φ = 23599680.

The previous prime is 23996723. The next prime is 23996737. The reversal of 23996729 is 92769932.

It can be written as a sum of positive squares in 3 ways, for example, as 211600 + 23785129 = 460^2 + 4877^2 .

It is not a de Polignac number, because 23996729 - 2⁸ = 23996473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23996723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 497 + ... + 6945.

It is an arithmetic number, because the mean of its divisors is an integer number (4066725).

Almost surely, 2^23996729 is an apocalyptic number.

It is an amenable number.

23996729 is a deficient number, since it is larger than the sum of its proper divisors (403621).

23996729 is an frugal number, since it uses more digits than its factorization.

23996729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6571 (or 6510 counting only the distinct ones).

The product of its digits is 367416, while the sum is 47.

The square root of 23996729 is about 4898.6456291510. The cubic root of 23996729 is about 288.4368090262.

The spelling of 23996729 in words is "twenty-three million, nine hundred ninety-six thousand, seven hundred twenty-nine".