23944689 has 6 divisors (see below), whose sum is σ = 34586786. Its totient is φ = 15963120.

The previous prime is 23944673. The next prime is 23944709. The reversal of 23944689 is 98644932.

It can be written as a sum of positive squares in only one way, i.e., 14745600 + 9199089 = 3840^2 + 3033^2 .

It is not a de Polignac number, because 23944689 - 2⁴ = 23944673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23944289) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1330252 + ... + 1330269.

Almost surely, 2^23944689 is an apocalyptic number.

It is an amenable number.

23944689 is a deficient number, since it is larger than the sum of its proper divisors (10642097).

23944689 is a wasteful number, since it uses less digits than its factorization.

23944689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2660527 (or 2660524 counting only the distinct ones).

The product of its digits is 373248, while the sum is 45.

The square root of 23944689 is about 4893.3310740231. The cubic root of 23944689 is about 288.2281539885.

The spelling of 23944689 in words is "twenty-three million, nine hundred forty-four thousand, six hundred eighty-nine".