649735606 has 16 divisors (see below), whose sum is σ = 1053486000. Its totient is φ = 298759968.

The previous prime is 649735591. The next prime is 649735643. The reversal of 649735606 is 606537946.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 39456 + ... + 53443.

It is an arithmetic number, because the mean of its divisors is an integer number (65842875).

Almost surely, 2^649735606 is an apocalyptic number.

649735606 is a deficient number, since it is larger than the sum of its proper divisors (403750394).

649735606 is a wasteful number, since it uses less digits than its factorization.

649735606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93183.

The product of its (nonzero) digits is 816480, while the sum is 46.

The square root of 649735606 is about 25489.9118476310. The cubic root of 649735606 is about 866.1216389398.

The spelling of 649735606 in words is "six hundred forty-nine million, seven hundred thirty-five thousand, six hundred six".