23885393 has 6 divisors (see below), whose sum is σ = 27785106. Its totient is φ = 20473152.

The previous prime is 23885371. The next prime is 23885399. The reversal of 23885393 is 39358832.

It can be written as a sum of positive squares in only one way, i.e., 21086464 + 2798929 = 4592^2 + 1673^2 .

It is not a de Polignac number, because 23885393 - 2¹⁰ = 23884369 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23885393.

It is not an unprimeable number, because it can be changed into a prime (23885399) 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, 243680 + ... + 243777.

It is an arithmetic number, because the mean of its divisors is an integer number (4630851).

Almost surely, 2^23885393 is an apocalyptic number.

It is an amenable number.

23885393 is a deficient number, since it is larger than the sum of its proper divisors (3899713).

23885393 is an equidigital number, since it uses as much as digits as its factorization.

23885393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487471 (or 487464 counting only the distinct ones).

The product of its digits is 155520, while the sum is 41.

The square root of 23885393 is about 4887.2684599887. The cubic root of 23885393 is about 287.9900371103.

It can be divided in two parts, 2388539 and 3, that multiplied together give a palindrome (7165617).

The spelling of 23885393 in words is "twenty-three million, eight hundred eighty-five thousand, three hundred ninety-three".