649227171 has 8 divisors (see below), whose sum is σ = 865817344. Its totient is φ = 432727560.

The previous prime is 649227167. The next prime is 649227191. The reversal of 649227171 is 171722946.

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

It is not a de Polignac number, because 649227171 - 2² = 649227167 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (649227191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3631 + ... + 36216.

It is an arithmetic number, because the mean of its divisors is an integer number (108227168).

Almost surely, 2^649227171 is an apocalyptic number.

649227171 is a deficient number, since it is larger than the sum of its proper divisors (216590173).

649227171 is a wasteful number, since it uses less digits than its factorization.

649227171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45281.

The product of its digits is 42336, while the sum is 39.

The square root of 649227171 is about 25479.9366364989. The cubic root of 649227171 is about 865.8956590861.

The spelling of 649227171 in words is "six hundred forty-nine million, two hundred twenty-seven thousand, one hundred seventy-one".