649075853 has 8 divisors (see below), whose sum is σ = 691471200. Its totient is φ = 607503888.

The previous prime is 649075831. The next prime is 649075877. The reversal of 649075853 is 358570946.

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 649075853 - 2¹² = 649071757 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 649075798 and 649075807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (649075813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 204218 + ... + 207371.

It is an arithmetic number, because the mean of its divisors is an integer number (86433900).

Almost surely, 2^649075853 is an apocalyptic number.

It is an amenable number.

649075853 is a deficient number, since it is larger than the sum of its proper divisors (42395347).

649075853 is a wasteful number, since it uses less digits than its factorization.

649075853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411691.

The product of its (nonzero) digits is 907200, while the sum is 47.

The square root of 649075853 is about 25476.9671075660. The cubic root of 649075853 is about 865.8283812589.

The spelling of 649075853 in words is "six hundred forty-nine million, seventy-five thousand, eight hundred fifty-three".