23989552 has 80 divisors (see below), whose sum is σ = 52853760. Its totient is φ = 10492416.

The previous prime is 23989547. The next prime is 23989591. The reversal of 23989552 is 25598932.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 23989499 and 23989508.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 328588 + ... + 328660.

It is an arithmetic number, because the mean of its divisors is an integer number (660672).

Almost surely, 2^23989552 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23989552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26426880).

23989552 is an abundant number, since it is smaller than the sum of its proper divisors (28864208).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23989552 is a wasteful number, since it uses less digits than its factorization.

23989552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170 (or 164 counting only the distinct ones).

The product of its digits is 194400, while the sum is 43.

The square root of 23989552 is about 4897.9130249526. The cubic root of 23989552 is about 288.4080506985.

The spelling of 23989552 in words is "twenty-three million, nine hundred eighty-nine thousand, five hundred fifty-two".