23200989 has 32 divisors (see below), whose sum is σ = 36888576. Its totient is φ = 12692160.

The previous prime is 23200987. The next prime is 23200993. The reversal of 23200989 is 98900232.

It is not a de Polignac number, because 23200989 - 2¹ = 23200987 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23200987) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 102094 + ... + 102320.

It is an arithmetic number, because the mean of its divisors is an integer number (1152768).

Almost surely, 2^23200989 is an apocalyptic number.

It is an amenable number.

23200989 is a deficient number, since it is larger than the sum of its proper divisors (13687587).

23200989 is a wasteful number, since it uses less digits than its factorization.

23200989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425.

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 23200989 is about 4816.7404953973. The cubic root of 23200989 is about 285.2126821200.

Adding to 23200989 its reverse (98900232), we get a palindrome (122101221).

The spelling of 23200989 in words is "twenty-three million, two hundred thousand, nine hundred eighty-nine".