649217411 has 8 divisors (see below), whose sum is σ = 671912304. Its totient is φ = 626849280.

The previous prime is 649217383. The next prime is 649217417. The reversal of 649217411 is 114712946.

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

It is a cyclic number.

It is not a de Polignac number, because 649217411 - 2⁶ = 649217347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (649217417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77645 + ... + 85598.

It is an arithmetic number, because the mean of its divisors is an integer number (83989038).

Almost surely, 2^649217411 is an apocalyptic number.

649217411 is a deficient number, since it is larger than the sum of its proper divisors (22694893).

649217411 is a wasteful number, since it uses less digits than its factorization.

649217411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163381.

The product of its digits is 12096, while the sum is 35.

The square root of 649217411 is about 25479.7451125399. The cubic root of 649217411 is about 865.8913199865.

The spelling of 649217411 in words is "six hundred forty-nine million, two hundred seventeen thousand, four hundred eleven".