671073217 has 4 divisors (see below), whose sum is σ = 706392880. Its totient is φ = 635753556.

The previous prime is 671073187. The next prime is 671073229. The reversal of 671073217 is 712370176.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 671073217 - 2¹⁵ = 671040449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (671073817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17659803 + ... + 17659840.

It is an arithmetic number, because the mean of its divisors is an integer number (176598220).

Almost surely, 2^671073217 is an apocalyptic number.

It is an amenable number.

671073217 is a deficient number, since it is larger than the sum of its proper divisors (35319663).

671073217 is a wasteful number, since it uses less digits than its factorization.

671073217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35319662.

The product of its (nonzero) digits is 12348, while the sum is 34.

The square root of 671073217 is about 25905.0809108947. The cubic root of 671073217 is about 875.5009776568.

The spelling of 671073217 in words is "six hundred seventy-one million, seventy-three thousand, two hundred seventeen".