649587376 has 30 divisors (see below), whose sum is σ = 1285993460. Its totient is φ = 317865888.

The previous prime is 649587349. The next prime is 649587397. The reversal of 649587376 is 673785946.

It is a happy number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 26155 + ... + 44533.

Almost surely, 2^649587376 is an apocalyptic number.

It is an amenable number.

649587376 is a deficient number, since it is larger than the sum of its proper divisors (636406084).

649587376 is a wasteful number, since it uses less digits than its factorization.

649587376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18481 (or 18428 counting only the distinct ones).

The product of its digits is 7620480, while the sum is 55.

The square root of 649587376 is about 25487.0040608935. The cubic root of 649587376 is about 866.0557685694.

The spelling of 649587376 in words is "six hundred forty-nine million, five hundred eighty-seven thousand, three hundred seventy-six".