649490485 has 16 divisors (see below), whose sum is σ = 905334912. Its totient is φ = 438062400.

The previous prime is 649490449. The next prime is 649490497. The reversal of 649490485 is 584094946.

649490485 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 649490485 - 2¹³ = 649482293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 149971 + ... + 154240.

It is an arithmetic number, because the mean of its divisors is an integer number (56583432).

Almost surely, 2^649490485 is an apocalyptic number.

It is an amenable number.

649490485 is a deficient number, since it is larger than the sum of its proper divisors (255844427).

649490485 is a wasteful number, since it uses less digits than its factorization.

649490485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304284.

The product of its (nonzero) digits is 1244160, while the sum is 49.

The square root of 649490485 is about 25485.1031977506. The cubic root of 649490485 is about 866.0127067813.

The spelling of 649490485 in words is "six hundred forty-nine million, four hundred ninety thousand, four hundred eighty-five".