649454674 has 12 divisors (see below), whose sum is σ = 1070795502. Its totient is φ = 295206560.

The previous prime is 649454669. The next prime is 649454693. The reversal of 649454674 is 476454946.

It is a happy number.

649454674 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 only one way, i.e., 620757225 + 28697449 = 24915^2 + 5357^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1341607 + ... + 1342090.

Almost surely, 2^649454674 is an apocalyptic number.

649454674 is a deficient number, since it is larger than the sum of its proper divisors (421340828).

649454674 is a wasteful number, since it uses less digits than its factorization.

649454674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2683721 (or 2683710 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 49.

The square root of 649454674 is about 25484.4006011521. The cubic root of 649454674 is about 865.9967900220.

The spelling of 649454674 in words is "six hundred forty-nine million, four hundred fifty-four thousand, six hundred seventy-four".