239804 has 6 divisors (see below), whose sum is σ = 419664. Its totient is φ = 119900.

The previous prime is 239803. The next prime is 239807. The reversal of 239804 is 408932.

It is a zygodrome in base 3.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (239803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 29972 + ... + 29979.

It is an arithmetic number, because the mean of its divisors is an integer number (69944).

2²³⁹⁸⁰⁴ is an apocalyptic number.

It is an amenable number.

239804 is a deficient number, since it is larger than the sum of its proper divisors (179860).

239804 is a wasteful number, since it uses less digits than its factorization.

239804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59955 (or 59953 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 239804 is about 489.6978660358. The cubic root of 239804 is about 62.1277283570.

Subtracting from 239804 its sum of digits (26), we obtain a triangular number (239778 = T₆₉₂).

The spelling of 239804 in words is "two hundred thirty-nine thousand, eight hundred four".