239897 has 8 divisors (see below), whose sum is σ = 280896. Its totient is φ = 200592.

The previous prime is 239893. The next prime is 239929. The reversal of 239897 is 798932.

239897 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 239897 - 2² = 239893 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 239897.

It is not an unprimeable number, because it can be changed into a prime (239893) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98 + ... + 699.

It is an arithmetic number, because the mean of its divisors is an integer number (35112).

2²³⁹⁸⁹⁷ is an apocalyptic number.

It is an amenable number.

239897 is a deficient number, since it is larger than the sum of its proper divisors (40999).

239897 is an equidigital number, since it uses as much as digits as its factorization.

239897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 847.

The product of its digits is 27216, while the sum is 38.

The square root of 239897 is about 489.7928133405. The cubic root of 239897 is about 62.1357587095.

The spelling of 239897 in words is "two hundred thirty-nine thousand, eight hundred ninety-seven".