23988293 has 6 divisors (see below), whose sum is σ = 27904806. Its totient is φ = 20561352.

The previous prime is 23988257. The next prime is 23988299. The reversal of 23988293 is 39288932.

It can be written as a sum of positive squares in only one way, i.e., 23600164 + 388129 = 4858^2 + 623^2 .

It is not a de Polignac number, because 23988293 - 2¹⁰ = 23987269 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23988299) 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, 244730 + ... + 244827.

It is an arithmetic number, because the mean of its divisors is an integer number (4650801).

Almost surely, 2^23988293 is an apocalyptic number.

It is an amenable number.

23988293 is a deficient number, since it is larger than the sum of its proper divisors (3916513).

23988293 is an equidigital number, since it uses as much as digits as its factorization.

23988293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489571 (or 489564 counting only the distinct ones).

The product of its digits is 186624, while the sum is 44.

The square root of 23988293 is about 4897.7844991384. The cubic root of 23988293 is about 288.4030052786.

The spelling of 23988293 in words is "twenty-three million, nine hundred eighty-eight thousand, two hundred ninety-three".