4639393982 has 4 divisors (see below), whose sum is σ = 6959090976. Its totient is φ = 2319696990.

The previous prime is 4639393981. The next prime is 4639394003. The reversal of 4639393982 is 2893939364.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4639393981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1159848494 + ... + 1159848497.

It is an arithmetic number, because the mean of its divisors is an integer number (1739772744).

Almost surely, 2^4639393982 is an apocalyptic number.

4639393982 is a deficient number, since it is larger than the sum of its proper divisors (2319696994).

4639393982 is a wasteful number, since it uses less digits than its factorization.

4639393982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2319696993.

The product of its digits is 7558272, while the sum is 56.

The square root of 4639393982 is about 68113.0969931628. The cubic root of 4639393982 is about 1667.8375661551.

The spelling of 4639393982 in words is "four billion, six hundred thirty-nine million, three hundred ninety-three thousand, nine hundred eighty-two".