649482805 has 8 divisors (see below), whose sum is σ = 784611000. Its totient is φ = 516098496.

The previous prime is 649482787. The next prime is 649482839. The reversal of 649482805 is 508284946.

649482805 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 101969604 + 547513201 = 10098^2 + 23399^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 649482805 - 2⁹ = 649482293 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 435150 + ... + 436639.

It is an arithmetic number, because the mean of its divisors is an integer number (98076375).

Almost surely, 2^649482805 is an apocalyptic number.

It is an amenable number.

649482805 is a deficient number, since it is larger than the sum of its proper divisors (135128195).

649482805 is a wasteful number, since it uses less digits than its factorization.

649482805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 871943.

The product of its (nonzero) digits is 552960, while the sum is 46.

The square root of 649482805 is about 25484.9525210466. The cubic root of 649482805 is about 866.0092933344.

The spelling of 649482805 in words is "six hundred forty-nine million, four hundred eighty-two thousand, eight hundred five".