239982386697 has 12 divisors (see below), whose sum is σ = 346679982064. Its totient is φ = 159970370040.

The previous prime is 239982386681. The next prime is 239982386723. The reversal of 239982386697 is 796683289932.

239982386697 is a `hidden beast` number, since 23 + 99 + 82 + 386 + 69 + 7 = 666.

It is not a de Polignac number, because 239982386697 - 2⁴ = 239982386681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (239982386647) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1405423 + ... + 1566900.

Almost surely, 2^239982386697 is an apocalyptic number.

It is an amenable number.

239982386697 is a deficient number, since it is larger than the sum of its proper divisors (106697595367).

239982386697 is a wasteful number, since it uses less digits than its factorization.

239982386697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2981300 (or 2981297 counting only the distinct ones).

The product of its digits is 423263232, while the sum is 72.

The spelling of 239982386697 in words is "two hundred thirty-nine billion, nine hundred eighty-two million, three hundred eighty-six thousand, six hundred ninety-seven".