239929023 has 4 divisors (see below), whose sum is σ = 319905368. Its totient is φ = 159952680.

The previous prime is 239929003. The next prime is 239929091. The reversal of 239929023 is 320929932.

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

It is not a de Polignac number, because 239929023 - 2¹⁰ = 239927999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (239929003) 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, 39988168 + ... + 39988173.

It is an arithmetic number, because the mean of its divisors is an integer number (79976342).

Almost surely, 2^239929023 is an apocalyptic number.

239929023 is a deficient number, since it is larger than the sum of its proper divisors (79976345).

239929023 is an equidigital number, since it uses as much as digits as its factorization.

239929023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79976344.

The product of its (nonzero) digits is 52488, while the sum is 39.

The square root of 239929023 is about 15489.6424426131. The cubic root of 239929023 is about 621.3852334724.

The spelling of 239929023 in words is "two hundred thirty-nine million, nine hundred twenty-nine thousand, twenty-three".