671315 has 4 divisors (see below), whose sum is σ = 805584. Its totient is φ = 537048.

The previous prime is 671303. The next prime is 671323. The reversal of 671315 is 513176.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 671315 - 2⁴ = 671299 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 67127 + ... + 67136.

It is an arithmetic number, because the mean of its divisors is an integer number (201396).

2⁶⁷¹³¹⁵ is an apocalyptic number.

671315 is a deficient number, since it is larger than the sum of its proper divisors (134269).

671315 is a wasteful number, since it uses less digits than its factorization.

671315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134268.

The product of its digits is 630, while the sum is 23.

The square root of 671315 is about 819.3381475313. The cubic root of 671315 is about 87.5606110664.

The spelling of 671315 in words is "six hundred seventy-one thousand, three hundred fifteen".