239775923 has 2 divisors, whose sum is σ = 239775924. Its totient is φ = 239775922.

The previous prime is 239775883. The next prime is 239775931. The reversal of 239775923 is 329577932.

239775923 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 239775923 - 2¹⁸ = 239513779 is a prime.

It is not a weakly prime, because it can be changed into another prime (239775983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119887961 + 119887962.

It is an arithmetic number, because the mean of its divisors is an integer number (119887962).

Almost surely, 2^239775923 is an apocalyptic number.

239775923 is a deficient number, since it is larger than the sum of its proper divisors (1).

239775923 is an equidigital number, since it uses as much as digits as its factorization.

239775923 is an evil number, because the sum of its binary digits is even.

The product of its digits is 714420, while the sum is 47.

The square root of 239775923 is about 15484.6996419046. The cubic root of 239775923 is about 621.2530355966.

The spelling of 239775923 in words is "two hundred thirty-nine million, seven hundred seventy-five thousand, nine hundred twenty-three".