671382 has 16 divisors (see below), whose sum is σ = 1492080. Its totient is φ = 223776.

The previous prime is 671369. The next prime is 671383. The reversal of 671382 is 283176.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671383) 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 7 ways as a sum of consecutive naturals, for example, 6163 + ... + 6270.

It is an arithmetic number, because the mean of its divisors is an integer number (93255).

2⁶⁷¹³⁸² is an apocalyptic number.

671382 is an abundant number, since it is smaller than the sum of its proper divisors (820698).

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

671382 is a wasteful number, since it uses less digits than its factorization.

671382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12444 (or 12438 counting only the distinct ones).

The product of its digits is 2016, while the sum is 27.

The square root of 671382 is about 819.3790331709. The cubic root of 671382 is about 87.5635239393.

The spelling of 671382 in words is "six hundred seventy-one thousand, three hundred eighty-two".