23900885 has 4 divisors (see below), whose sum is σ = 28681068. Its totient is φ = 19120704.

The previous prime is 23900831. The next prime is 23900893. The reversal of 23900885 is 58800932.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7828804 + 16072081 = 2798^2 + 4009^2 .

It is a cyclic number.

It is not a de Polignac number, because 23900885 - 2⁸ = 23900629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2390084 + ... + 2390093.

It is an arithmetic number, because the mean of its divisors is an integer number (7170267).

Almost surely, 2^23900885 is an apocalyptic number.

It is an amenable number.

23900885 is a deficient number, since it is larger than the sum of its proper divisors (4780183).

23900885 is an equidigital number, since it uses as much as digits as its factorization.

23900885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4780182.

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 23900885 is about 4888.8531374955. The cubic root of 23900885 is about 288.0522868351.

The spelling of 23900885 in words is "twenty-three million, nine hundred thousand, eight hundred eighty-five".