239118797 has 4 divisors (see below), whose sum is σ = 240332796. Its totient is φ = 237904800.

The previous prime is 239118791. The next prime is 239118839. The reversal of 239118797 is 797811932.

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

It can be written as a sum of positive squares in 2 ways, for example, as 236359876 + 2758921 = 15374^2 + 1661^2 .

It is a cyclic number.

It is not a de Polignac number, because 239118797 - 2¹⁰ = 239117773 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (239118791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 606704 + ... + 607097.

It is an arithmetic number, because the mean of its divisors is an integer number (60083199).

Almost surely, 2^239118797 is an apocalyptic number.

It is an amenable number.

239118797 is a deficient number, since it is larger than the sum of its proper divisors (1213999).

239118797 is a wasteful number, since it uses less digits than its factorization.

239118797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1213998.

The product of its digits is 190512, while the sum is 47.

The square root of 239118797 is about 15463.4665259766. The cubic root of 239118797 is about 620.6849843565.

The spelling of 239118797 in words is "two hundred thirty-nine million, one hundred eighteen thousand, seven hundred ninety-seven".