23930789 has 2 divisors, whose sum is σ = 23930790. Its totient is φ = 23930788.

The previous prime is 23930779. The next prime is 23930807. The reversal of 23930789 is 98703932.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23600164 + 330625 = 4858^2 + 575^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23930789 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23930779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11965394 + 11965395.

It is an arithmetic number, because the mean of its divisors is an integer number (11965395).

Almost surely, 2^23930789 is an apocalyptic number.

It is an amenable number.

23930789 is a deficient number, since it is larger than the sum of its proper divisors (1).

23930789 is an equidigital number, since it uses as much as digits as its factorization.

23930789 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 81648, while the sum is 41.

The square root of 23930789 is about 4891.9105674573. The cubic root of 23930789 is about 288.1723706116.

The spelling of 23930789 in words is "twenty-three million, nine hundred thirty thousand, seven hundred eighty-nine".