23124789 has 6 divisors (see below), whose sum is σ = 33402486. Its totient is φ = 15416520.

The previous prime is 23124769. The next prime is 23124809. The reversal of 23124789 is 98742132.

It is an interprime number because it is at equal distance from previous prime (23124769) and next prime (23124809).

It can be written as a sum of positive squares in only one way, i.e., 17994564 + 5130225 = 4242^2 + 2265^2 .

It is not a de Polignac number, because 23124789 - 2¹⁵ = 23092021 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23124749) 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, 1284702 + ... + 1284719.

It is an arithmetic number, because the mean of its divisors is an integer number (5567081).

Almost surely, 2^23124789 is an apocalyptic number.

It is an amenable number.

23124789 is a deficient number, since it is larger than the sum of its proper divisors (10277697).

23124789 is a wasteful number, since it uses less digits than its factorization.

23124789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2569427 (or 2569424 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 23124789 is about 4808.8240766325. The cubic root of 23124789 is about 284.9000942530.

The spelling of 23124789 in words is "twenty-three million, one hundred twenty-four thousand, seven hundred eighty-nine".