4939317687 has 4 divisors (see below), whose sum is σ = 6585756920. Its totient is φ = 3292878456.

The previous prime is 4939317659. The next prime is 4939317709. The reversal of 4939317687 is 7867139394.

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

It is not a de Polignac number, because 4939317687 - 2¹⁶ = 4939252151 is a prime.

It is a super-2 number, since 2×4939317687² = 48793718426222059938, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4939317287) 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, 823219612 + ... + 823219617.

It is an arithmetic number, because the mean of its divisors is an integer number (1646439230).

Almost surely, 2^4939317687 is an apocalyptic number.

4939317687 is a deficient number, since it is larger than the sum of its proper divisors (1646439233).

4939317687 is a wasteful number, since it uses less digits than its factorization.

4939317687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1646439232.

The product of its digits is 6858432, while the sum is 57.

The square root of 4939317687 is about 70280.2795028591. The cubic root of 4939317687 is about 1703.0300846566.

The spelling of 4939317687 in words is "four billion, nine hundred thirty-nine million, three hundred seventeen thousand, six hundred eighty-seven".