23992789 has 2 divisors, whose sum is σ = 23992790. Its totient is φ = 23992788.

The previous prime is 23992783. The next prime is 23992799. The reversal of 23992789 is 98729932.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21464689 + 2528100 = 4633^2 + 1590^2 .

It is a cyclic number.

It is not a de Polignac number, because 23992789 - 2⁵ = 23992757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23992783) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11996394 + 11996395.

It is an arithmetic number, because the mean of its divisors is an integer number (11996395).

Almost surely, 2^23992789 is an apocalyptic number.

It is an amenable number.

23992789 is a deficient number, since it is larger than the sum of its proper divisors (1).

23992789 is an equidigital number, since it uses as much as digits as its factorization.

23992789 is an evil number, because the sum of its binary digits is even.

The product of its digits is 489888, while the sum is 49.

The square root of 23992789 is about 4898.2434606704. The cubic root of 23992789 is about 288.4210221075.

The spelling of 23992789 in words is "twenty-three million, nine hundred ninety-two thousand, seven hundred eighty-nine".