23456889 has 12 divisors (see below), whose sum is σ = 35875476. Its totient is φ = 14717952.

The previous prime is 23456843. The next prime is 23456891. The reversal of 23456889 is 98865432.

23456889 is a `hidden beast` number, since 2 + 3 + 4 + 568 + 89 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 8363664 + 15093225 = 2892^2 + 3885^2 .

It is not a de Polignac number, because 23456889 - 2⁷ = 23456761 is a prime.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (23456819) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 76504 + ... + 76809.

It is an arithmetic number, because the mean of its divisors is an integer number (2989623).

Almost surely, 2^23456889 is an apocalyptic number.

It is an amenable number.

23456889 is a deficient number, since it is larger than the sum of its proper divisors (12418587).

23456889 is a wasteful number, since it uses less digits than its factorization.

23456889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153336 (or 153333 counting only the distinct ones).

The product of its digits is 414720, while the sum is 45.

The square root of 23456889 is about 4843.2312560934. The cubic root of 23456889 is about 286.2574539607.

The spelling of 23456889 in words is "twenty-three million, four hundred fifty-six thousand, eight hundred eighty-nine".