23200789 has 2 divisors, whose sum is σ = 23200790. Its totient is φ = 23200788.

The previous prime is 23200781. The next prime is 23200817. The reversal of 23200789 is 98700232.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15665764 + 7535025 = 3958^2 + 2745^2 .

It is a cyclic number.

It is not a de Polignac number, because 23200789 - 2³ = 23200781 is a prime.

It is a super-2 number, since 2×23200789² = 1076553220445042, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23200789.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23200781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11600394 + 11600395.

It is an arithmetic number, because the mean of its divisors is an integer number (11600395).

Almost surely, 2^23200789 is an apocalyptic number.

It is an amenable number.

23200789 is a deficient number, since it is larger than the sum of its proper divisors (1).

23200789 is an equidigital number, since it uses as much as digits as its factorization.

23200789 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 23200789 is about 4816.7197344251. The cubic root of 23200789 is about 285.2118625759.

The spelling of 23200789 in words is "twenty-three million, two hundred thousand, seven hundred eighty-nine".