239426923 has 4 divisors (see below), whose sum is σ = 252028360. Its totient is φ = 226825488.

The previous prime is 239426903. The next prime is 239426927. The reversal of 239426923 is 329624932.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 239426923 - 2¹³ = 239418731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (239426927) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6300690 + ... + 6300727.

It is an arithmetic number, because the mean of its divisors is an integer number (63007090).

Almost surely, 2^239426923 is an apocalyptic number.

239426923 is a deficient number, since it is larger than the sum of its proper divisors (12601437).

239426923 is a wasteful number, since it uses less digits than its factorization.

239426923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12601436.

The product of its digits is 139968, while the sum is 40.

The square root of 239426923 is about 15473.4263497132. The cubic root of 239426923 is about 620.9514726675.

The spelling of 239426923 in words is "two hundred thirty-nine million, four hundred twenty-six thousand, nine hundred twenty-three".