649441363 has 4 divisors (see below), whose sum is σ = 677677968. Its totient is φ = 621204760.

The previous prime is 649441343. The next prime is 649441367. The reversal of 649441363 is 363144946.

649441363 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 649441363 - 2²¹ = 647344211 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (649441367) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14118268 + ... + 14118313.

It is an arithmetic number, because the mean of its divisors is an integer number (169419492).

Almost surely, 2^649441363 is an apocalyptic number.

649441363 is a deficient number, since it is larger than the sum of its proper divisors (28236605).

649441363 is a wasteful number, since it uses less digits than its factorization.

649441363 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28236604.

The product of its digits is 186624, while the sum is 40.

The square root of 649441363 is about 25484.1394400517. The cubic root of 649441363 is about 865.9908735906.

The spelling of 649441363 in words is "six hundred forty-nine million, four hundred forty-one thousand, three hundred sixty-three".