671676 has 24 divisors (see below), whose sum is σ = 1580544. Its totient is φ = 222000.

The previous prime is 671651. The next prime is 671681. The reversal of 671676 is 676176.

It is a super-2 number, since 2×671676² = 902297297952, which contains 22 as substring.

It is a plaindrome in base 14.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2551 + ... + 2801.

It is an arithmetic number, because the mean of its divisors is an integer number (65856).

2⁶⁷¹⁶⁷⁶ is an apocalyptic number.

It is an amenable number.

671676 is an abundant number, since it is smaller than the sum of its proper divisors (908868).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

671676 is a wasteful number, since it uses less digits than its factorization.

671676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481 (or 479 counting only the distinct ones).

The product of its digits is 10584, while the sum is 33.

The square root of 671676 is about 819.5584176860. The cubic root of 671676 is about 87.5763035090.

The spelling of 671676 in words is "six hundred seventy-one thousand, six hundred seventy-six".