671974 has 8 divisors (see below), whose sum is σ = 1020960. Its totient is φ = 331656.

The previous prime is 671971. The next prime is 671981. The reversal of 671974 is 479176.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671971) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1969 + ... + 2284.

It is an arithmetic number, because the mean of its divisors is an integer number (127620).

2⁶⁷¹⁹⁷⁴ is an apocalyptic number.

671974 is a deficient number, since it is larger than the sum of its proper divisors (348986).

671974 is a wasteful number, since it uses less digits than its factorization.

671974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4334.

The product of its digits is 10584, while the sum is 34.

The square root of 671974 is about 819.7402027472. The cubic root of 671974 is about 87.5892531453.

The spelling of 671974 in words is "six hundred seventy-one thousand, nine hundred seventy-four".