671307 has 16 divisors (see below), whose sum is σ = 1102080. Its totient is φ = 353952.

The previous prime is 671303. The next prime is 671323. The reversal of 671307 is 703176.

It is not a de Polignac number, because 671307 - 2² = 671303 is a prime.

671307 is a lucky number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 671307.

It is not an unprimeable number, because it can be changed into a prime (671303) 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 15 ways as a sum of consecutive naturals, for example, 957 + ... + 1502.

It is an arithmetic number, because the mean of its divisors is an integer number (68880).

2⁶⁷¹³⁰⁷ is an apocalyptic number.

671307 is a deficient number, since it is larger than the sum of its proper divisors (430773).

671307 is a wasteful number, since it uses less digits than its factorization.

671307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2482.

The product of its (nonzero) digits is 882, while the sum is 24.

The square root of 671307 is about 819.3332655275. Note that the first 3 decimals coincide. The cubic root of 671307 is about 87.5602632477.

The spelling of 671307 in words is "six hundred seventy-one thousand, three hundred seven".