239253923 has 16 divisors (see below), whose sum is σ = 249989760. Its totient is φ = 228819456.

The previous prime is 239253899. The next prime is 239253943. The reversal of 239253923 is 329352932.

It is a happy number.

239253923 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 239253923 - 2²⁰ = 238205347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (239253943) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 469793 + ... + 470301.

It is an arithmetic number, because the mean of its divisors is an integer number (15624360).

Almost surely, 2^239253923 is an apocalyptic number.

239253923 is a deficient number, since it is larger than the sum of its proper divisors (10735837).

239253923 is a wasteful number, since it uses less digits than its factorization.

239253923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 766.

The product of its digits is 87480, while the sum is 38.

The square root of 239253923 is about 15467.8351103184. The cubic root of 239253923 is about 620.8018786740.

Subtracting 239253923 from its reverse (329352932), we obtain a palindrome (90099009).

The spelling of 239253923 in words is "two hundred thirty-nine million, two hundred fifty-three thousand, nine hundred twenty-three".