671006 has 24 divisors (see below), whose sum is σ = 1206576. Its totient is φ = 278880.

The previous prime is 671003. The next prime is 671017. The reversal of 671006 is 600176.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671003) 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, 3935 + ... + 4101.

It is an arithmetic number, because the mean of its divisors is an integer number (50274).

2⁶⁷¹⁰⁰⁶ is an apocalyptic number.

671006 is a deficient number, since it is larger than the sum of its proper divisors (535570).

671006 is a wasteful number, since it uses less digits than its factorization.

671006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224 (or 217 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 20.

The square root of 671006 is about 819.1495589940. The cubic root of 671006 is about 87.5471745618.

The spelling of 671006 in words is "six hundred seventy-one thousand, six".