239345997 has 8 divisors (see below), whose sum is σ = 348139680. Its totient is φ = 145058160.

The previous prime is 239345971. The next prime is 239345999. The reversal of 239345997 is 799543932.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 239345997 - 2¹⁸ = 239083853 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (239345999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3626422 + ... + 3626487.

It is an arithmetic number, because the mean of its divisors is an integer number (43517460).

Almost surely, 2^239345997 is an apocalyptic number.

It is an amenable number.

239345997 is a deficient number, since it is larger than the sum of its proper divisors (108793683).

239345997 is a wasteful number, since it uses less digits than its factorization.

239345997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7252923.

The product of its digits is 1837080, while the sum is 51.

The square root of 239345997 is about 15470.8111293494. The cubic root of 239345997 is about 620.8815045106.

The spelling of 239345997 in words is "two hundred thirty-nine million, three hundred forty-five thousand, nine hundred ninety-seven".