649454564 has 12 divisors (see below), whose sum is σ = 1239867888. Its totient is φ = 295206600.

The previous prime is 649454563. The next prime is 649454573. The reversal of 649454564 is 465454946.

It is not an unprimeable number, because it can be changed into a prime (649454563) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 7380122 + ... + 7380209.

It is an arithmetic number, because the mean of its divisors is an integer number (103322324).

Almost surely, 2^649454564 is an apocalyptic number.

It is an amenable number.

649454564 is a deficient number, since it is larger than the sum of its proper divisors (590413324).

649454564 is a wasteful number, since it uses less digits than its factorization.

649454564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14760346 (or 14760344 counting only the distinct ones).

The product of its digits is 2073600, while the sum is 47.

The square root of 649454564 is about 25484.3984429690. The cubic root of 649454564 is about 865.9967411299.

The spelling of 649454564 in words is "six hundred forty-nine million, four hundred fifty-four thousand, five hundred sixty-four".