671862 has 8 divisors (see below), whose sum is σ = 1343736. Its totient is φ = 223952.

The previous prime is 671851. The next prime is 671887. The reversal of 671862 is 268176.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

671862 is an admirable number.

It is a congruent number.

It is an unprimeable number.

671862 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55983 + ... + 55994.

It is an arithmetic number, because the mean of its divisors is an integer number (167967).

2⁶⁷¹⁸⁶² is an apocalyptic number.

671862 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

671862 is a wasteful number, since it uses less digits than its factorization.

671862 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111982.

The product of its digits is 4032, while the sum is 30.

The square root of 671862 is about 819.6718855737. The cubic root of 671862 is about 87.5843866170.

The spelling of 671862 in words is "six hundred seventy-one thousand, eight hundred sixty-two".