239671 has 2 divisors, whose sum is σ = 239672. Its totient is φ = 239670.

The previous prime is 239641. The next prime is 239689. The reversal of 239671 is 176932.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 239671 - 2⁷ = 239543 is a prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (239611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119835 + 119836.

It is an arithmetic number, because the mean of its divisors is an integer number (119836).

2²³⁹⁶⁷¹ is an apocalyptic number.

239671 is a deficient number, since it is larger than the sum of its proper divisors (1).

239671 is an equidigital number, since it uses as much as digits as its factorization.

239671 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2268, while the sum is 28.

The square root of 239671 is about 489.5620491827. The cubic root of 239671 is about 62.1162404809.

The spelling of 239671 in words is "two hundred thirty-nine thousand, six hundred seventy-one".