239967 has 24 divisors (see below), whose sum is σ = 428064. Its totient is φ = 126144.

The previous prime is 239963. The next prime is 239977. The reversal of 239967 is 769932.

It is not a de Polignac number, because 239967 - 2² = 239963 is a prime.

It is a super-2 number, since 2×239967² = 115168322178, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (239963) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 673 + ... + 965.

It is an arithmetic number, because the mean of its divisors is an integer number (17836).

2²³⁹⁹⁶⁷ is an apocalyptic number.

239967 is a deficient number, since it is larger than the sum of its proper divisors (188097).

239967 is a wasteful number, since it uses less digits than its factorization.

239967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319 (or 316 counting only the distinct ones).

The product of its digits is 20412, while the sum is 36.

The square root of 239967 is about 489.8642669148. The cubic root of 239967 is about 62.1418016921.

The spelling of 239967 in words is "two hundred thirty-nine thousand, nine hundred sixty-seven".