239887 has 8 divisors (see below), whose sum is σ = 258336. Its totient is φ = 221952.

The previous prime is 239879. The next prime is 239893. The reversal of 239887 is 788932.

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

It is not a de Polignac number, because 239887 - 2³ = 239879 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 (239807) 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, 1683 + ... + 1819.

It is an arithmetic number, because the mean of its divisors is an integer number (32292).

2²³⁹⁸⁸⁷ is an apocalyptic number.

239887 is a deficient number, since it is larger than the sum of its proper divisors (18449).

239887 is a wasteful number, since it uses less digits than its factorization.

239887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257.

The product of its digits is 24192, while the sum is 37.

The square root of 239887 is about 489.7826048361. The cubic root of 239887 is about 62.1348953304.

It can be divided in two parts, 2398 and 87, that added together give a triangular number (2485 = T₇₀).

The spelling of 239887 in words is "two hundred thirty-nine thousand, eight hundred eighty-seven".