239664107 has 4 divisors (see below), whose sum is σ = 241493736. Its totient is φ = 237834480.

The previous prime is 239664097. The next prime is 239664109. The reversal of 239664107 is 701466932.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-239664107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (239664109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 914618 + ... + 914879.

It is an arithmetic number, because the mean of its divisors is an integer number (60373434).

Almost surely, 2^239664107 is an apocalyptic number.

239664107 is a deficient number, since it is larger than the sum of its proper divisors (1829629).

239664107 is a wasteful number, since it uses less digits than its factorization.

239664107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1829628.

The product of its (nonzero) digits is 54432, while the sum is 38.

The square root of 239664107 is about 15481.0886891071. The cubic root of 239664107 is about 621.1564498211.

The spelling of 239664107 in words is "two hundred thirty-nine million, six hundred sixty-four thousand, one hundred seven".