23838889 has 6 divisors (see below), whose sum is σ = 24184490. Its totient is φ = 23498160.

The previous prime is 23838887. The next prime is 23838931. The reversal of 23838889 is 98883832.

It can be written as a sum of positive squares in only one way, i.e., 13630864 + 10208025 = 3692^2 + 3195^2 .

It is not a de Polignac number, because 23838889 - 2¹ = 23838887 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23838883) 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, 2677 + ... + 7405.

Almost surely, 2^23838889 is an apocalyptic number.

It is an amenable number.

23838889 is a deficient number, since it is larger than the sum of its proper divisors (345601).

23838889 is an frugal number, since it uses more digits than its factorization.

23838889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4871 (or 4800 counting only the distinct ones).

The product of its digits is 663552, while the sum is 49.

The square root of 23838889 is about 4882.5084741350. The cubic root of 23838889 is about 287.8030136048.

The spelling of 23838889 in words is "twenty-three million, eight hundred thirty-eight thousand, eight hundred eighty-nine".