649843347 has 8 divisors (see below), whose sum is σ = 871774144. Its totient is φ = 430570728.

The previous prime is 649843319. The next prime is 649843361. The reversal of 649843347 is 743348946.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 649843347 - 2⁶ = 649843283 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 649843296 and 649843305.

It is not an unprimeable number, because it can be changed into a prime (649843307) by changing a digit.

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, 663973 + ... + 664950.

It is an arithmetic number, because the mean of its divisors is an integer number (108971768).

Almost surely, 2^649843347 is an apocalyptic number.

649843347 is a deficient number, since it is larger than the sum of its proper divisors (221930797).

649843347 is a wasteful number, since it uses less digits than its factorization.

649843347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1329089.

The product of its digits is 1741824, while the sum is 48.

The square root of 649843347 is about 25492.0251647452. The cubic root of 649843347 is about 866.1695105422.

The spelling of 649843347 in words is "six hundred forty-nine million, eight hundred forty-three thousand, three hundred forty-seven".