239730117 has 16 divisors (see below), whose sum is σ = 356809728. Its totient is φ = 141911280.

The previous prime is 239730109. The next prime is 239730119. The reversal of 239730117 is 711037932.

It is a happy number.

It is not a de Polignac number, because 239730117 - 2³ = 239730109 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (239730119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83053 + ... + 85890.

It is an arithmetic number, because the mean of its divisors is an integer number (22300608).

Almost surely, 2^239730117 is an apocalyptic number.

It is an amenable number.

239730117 is a deficient number, since it is larger than the sum of its proper divisors (117079611).

239730117 is a wasteful number, since it uses less digits than its factorization.

239730117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169000.

The product of its (nonzero) digits is 7938, while the sum is 33.

The square root of 239730117 is about 15483.2204983330. The cubic root of 239730117 is about 621.2134723681.

The spelling of 239730117 in words is "two hundred thirty-nine million, seven hundred thirty thousand, one hundred seventeen".