4939639964 has 48 divisors (see below), whose sum is σ = 10198771968. Its totient is φ = 2049401088.

The previous prime is 4939639961. The next prime is 4939639967. The reversal of 4939639964 is 4699369394.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (4939639961) and next prime (4939639967).

It is a junction number, because it is equal to n+sod(n) for n = 4939639897 and 4939639906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4939639961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 117899 + ... + 154205.

It is an arithmetic number, because the mean of its divisors is an integer number (212474416).

Almost surely, 2^4939639964 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4939639964, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5099385984).

4939639964 is an abundant number, since it is smaller than the sum of its proper divisors (5259132004).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4939639964 is a wasteful number, since it uses less digits than its factorization.

4939639964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36474 (or 36472 counting only the distinct ones).

The product of its digits is 34012224, while the sum is 62.

The square root of 4939639964 is about 70282.5722636843. The cubic root of 4939639964 is about 1703.0671232063.

The spelling of 4939639964 in words is "four billion, nine hundred thirty-nine million, six hundred thirty-nine thousand, nine hundred sixty-four".