6353649 has 12 divisors (see below), whose sum is σ = 9246276. Its totient is φ = 4204032.

The previous prime is 6353629. The next prime is 6353653. The reversal of 6353649 is 9463536.

6353649 is a `hidden beast` number, since 6 + 3 + 5 + 3 + 649 = 666.

6353649 is digitally balanced in base 3, 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 2 ways, for example, as 3873024 + 2480625 = 1968^2 + 1575^2 .

It is not a de Polignac number, because 6353649 - 2⁵ = 6353617 is a prime.

6353649 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (6353629) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1344 + ... + 3809.

It is an arithmetic number, because the mean of its divisors is an integer number (770523).

Almost surely, 2^6353649 is an apocalyptic number.

It is an amenable number.

6353649 is a deficient number, since it is larger than the sum of its proper divisors (2892627).

6353649 is a wasteful number, since it uses less digits than its factorization.

6353649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5296 (or 5293 counting only the distinct ones).

The product of its digits is 58320, while the sum is 36.

The square root of 6353649 is about 2520.6445604250. The cubic root of 6353649 is about 185.2142538403.

The spelling of 6353649 in words is "six million, three hundred fifty-three thousand, six hundred forty-nine".