671297 has 4 divisors (see below), whose sum is σ = 732336. Its totient is φ = 610260.

The previous prime is 671287. The next prime is 671299. The reversal of 671297 is 792176.

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 671297 - 2⁶ = 671233 is a prime.

It is not an unprimeable number, because it can be changed into a prime (671299) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30503 + ... + 30524.

It is an arithmetic number, because the mean of its divisors is an integer number (183084).

2⁶⁷¹²⁹⁷ is an apocalyptic number.

It is an amenable number.

671297 is a deficient number, since it is larger than the sum of its proper divisors (61039).

671297 is a wasteful number, since it uses less digits than its factorization.

671297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61038.

The product of its digits is 5292, while the sum is 32.

The square root of 671297 is about 819.3271629819. The cubic root of 671297 is about 87.5598284705.

The spelling of 671297 in words is "six hundred seventy-one thousand, two hundred ninety-seven".