649286339 has 12 divisors (see below), whose sum is σ = 704050776. Its totient is φ = 598508352.

The previous prime is 649286329. The next prime is 649286371. The reversal of 649286339 is 933682946.

649286339 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-649286339 is a prime.

It is not an unprimeable number, because it can be changed into a prime (649286329) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 142592 + ... + 147074.

It is an arithmetic number, because the mean of its divisors is an integer number (58670898).

Almost surely, 2^649286339 is an apocalyptic number.

649286339 is a deficient number, since it is larger than the sum of its proper divisors (54764437).

649286339 is a wasteful number, since it uses less digits than its factorization.

649286339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5366 (or 5353 counting only the distinct ones).

The product of its digits is 1679616, while the sum is 50.

The square root of 649286339 is about 25481.0976804376. The cubic root of 649286339 is about 865.9219630571.

The spelling of 649286339 in words is "six hundred forty-nine million, two hundred eighty-six thousand, three hundred thirty-nine".