649853085 has 16 divisors (see below), whose sum is σ = 1188302976. Its totient is φ = 297075648.

The previous prime is 649853047. The next prime is 649853117. The reversal of 649853085 is 580358946.

It is a happy number.

It is not a de Polignac number, because 649853085 - 2⁶ = 649853021 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3094434 + ... + 3094643.

It is an arithmetic number, because the mean of its divisors is an integer number (74268936).

Almost surely, 2^649853085 is an apocalyptic number.

It is an amenable number.

649853085 is a deficient number, since it is larger than the sum of its proper divisors (538449891).

649853085 is a wasteful number, since it uses less digits than its factorization.

649853085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6189092.

The product of its (nonzero) digits is 1036800, while the sum is 48.

The square root of 649853085 is about 25492.2161649394. The cubic root of 649853085 is about 866.1738370806.

The spelling of 649853085 in words is "six hundred forty-nine million, eight hundred fifty-three thousand, eighty-five".