639316167 has 16 divisors (see below), whose sum is σ = 979249920. Its totient is φ = 363428352.

The previous prime is 639316133. The next prime is 639316187. The reversal of 639316167 is 761613936.

It is not a de Polignac number, because 639316167 - 2¹¹ = 639314119 is a prime.

It is a super-2 number, since 2×639316167² = 817450322775143778, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (639316187) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74817 + ... + 82922.

It is an arithmetic number, because the mean of its divisors is an integer number (61203120).

Almost surely, 2^639316167 is an apocalyptic number.

639316167 is a deficient number, since it is larger than the sum of its proper divisors (339933753).

639316167 is a wasteful number, since it uses less digits than its factorization.

639316167 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157942.

The product of its digits is 122472, while the sum is 42.

The square root of 639316167 is about 25284.7022327731. The cubic root of 639316167 is about 861.4668346430.

The spelling of 639316167 in words is "six hundred thirty-nine million, three hundred sixteen thousand, one hundred sixty-seven".