23964489 has 6 divisors (see below), whose sum is σ = 34615386. Its totient is φ = 15976320.

The previous prime is 23964487. The next prime is 23964497. The reversal of 23964489 is 98446932.

It can be written as a sum of positive squares in only one way, i.e., 18558864 + 5405625 = 4308^2 + 2325^2 .

It is not a de Polignac number, because 23964489 - 2¹ = 23964487 is a prime.

It is a super-2 number, since 2×23964489² = 1148593466062242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23964481) 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, 1331352 + ... + 1331369.

It is an arithmetic number, because the mean of its divisors is an integer number (5769231).

Almost surely, 2^23964489 is an apocalyptic number.

It is an amenable number.

23964489 is a deficient number, since it is larger than the sum of its proper divisors (10650897).

23964489 is a wasteful number, since it uses less digits than its factorization.

23964489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2662727 (or 2662724 counting only the distinct ones).

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

The square root of 23964489 is about 4895.3538176520. The cubic root of 23964489 is about 288.3075779357.

The spelling of 23964489 in words is "twenty-three million, nine hundred sixty-four thousand, four hundred eighty-nine".