649585946 has 16 divisors (see below), whose sum is σ = 1085996160. Its totient is φ = 289598400.

The previous prime is 649585931. The next prime is 649585961.

649585946 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (649585931) and next prime (649585961).

It is a junction number, because it is equal to n+sod(n) for n = 649585891 and 649585900.

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 7 ways as a sum of consecutive naturals, for example, 502130 + ... + 503421.

It is an arithmetic number, because the mean of its divisors is an integer number (67874760).

Almost surely, 2^649585946 is an apocalyptic number.

649585946 is a deficient number, since it is larger than the sum of its proper divisors (436410214).

649585946 is a wasteful number, since it uses less digits than its factorization.

649585946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1005589.

The product of its digits is 9331200, while the sum is 56.

The square root of 649585946 is about 25486.9760073650. The cubic root of 649585946 is about 866.0551330579.

The spelling of 649585946 in words is "six hundred forty-nine million, five hundred eighty-five thousand, nine hundred forty-six".