671337 has 12 divisors (see below), whose sum is σ = 980980. Its totient is φ = 442368.

The previous prime is 671323. The next prime is 671339. The reversal of 671337 is 733176.

It can be written as a sum of positive squares in 2 ways, for example, as 281961 + 389376 = 531^2 + 624^2 .

It is not a de Polignac number, because 671337 - 2⁸ = 671081 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 671337.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 671337.

It is not an unprimeable number, because it can be changed into a prime (671339) 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 11 ways as a sum of consecutive naturals, for example, 489 + ... + 1257.

2⁶⁷¹³³⁷ is an apocalyptic number.

It is an amenable number.

671337 is a deficient number, since it is larger than the sum of its proper divisors (309643).

671337 is a wasteful number, since it uses less digits than its factorization.

671337 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 872 (or 869 counting only the distinct ones).

The product of its digits is 2646, while the sum is 27.

The square root of 671337 is about 819.3515728916. The cubic root of 671337 is about 87.5615675535.

The spelling of 671337 in words is "six hundred seventy-one thousand, three hundred thirty-seven".