671254317 has 8 divisors (see below), whose sum is σ = 994450880. Its totient is φ = 447502860.

The previous prime is 671254313. The next prime is 671254319. The reversal of 671254317 is 713452176.

It is a happy number.

It is not a de Polignac number, because 671254317 - 2² = 671254313 is a prime.

It is a super-2 number, since 2×671254317² = 901164716182272978, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671254313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12430609 + ... + 12430662.

It is an arithmetic number, because the mean of its divisors is an integer number (124306360).

Almost surely, 2^671254317 is an apocalyptic number.

It is an amenable number.

671254317 is a deficient number, since it is larger than the sum of its proper divisors (323196563).

671254317 is a wasteful number, since it uses less digits than its factorization.

671254317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24861280 (or 24861274 counting only the distinct ones).

The product of its digits is 35280, while the sum is 36.

The square root of 671254317 is about 25908.5761283788. The cubic root of 671254317 is about 875.5797266231.

The spelling of 671254317 in words is "six hundred seventy-one million, two hundred fifty-four thousand, three hundred seventeen".