639848222 has 8 divisors (see below), whose sum is σ = 1033601016. Its totient is φ = 295314552.

The previous prime is 639848113. The next prime is 639848233. The reversal of 639848222 is 222848936.

639848222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×639848222² = 818811494393122568, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12304748 + ... + 12304799.

It is an arithmetic number, because the mean of its divisors is an integer number (129200127).

Almost surely, 2^639848222 is an apocalyptic number.

639848222 is a deficient number, since it is larger than the sum of its proper divisors (393752794).

639848222 is a wasteful number, since it uses less digits than its factorization.

639848222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24609562.

The product of its digits is 331776, while the sum is 44.

The square root of 639848222 is about 25295.2213273575. The cubic root of 639848222 is about 861.7057465042.

The spelling of 639848222 in words is "six hundred thirty-nine million, eight hundred forty-eight thousand, two hundred twenty-two".