671892 has 48 divisors (see below), whose sum is σ = 1740480. Its totient is φ = 200448.

The previous prime is 671887. The next prime is 671893. The reversal of 671892 is 298176.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671893) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9168 + ... + 9240.

It is an arithmetic number, because the mean of its divisors is an integer number (36260).

2⁶⁷¹⁸⁹² is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 671892, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (870240).

671892 is an abundant number, since it is smaller than the sum of its proper divisors (1068588).

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

671892 is a wasteful number, since it uses less digits than its factorization.

671892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152 (or 150 counting only the distinct ones).

The product of its digits is 6048, while the sum is 33.

The square root of 671892 is about 819.6901853749. The cubic root of 671892 is about 87.5856902044.

The spelling of 671892 in words is "six hundred seventy-one thousand, eight hundred ninety-two".