671794 has 4 divisors (see below), whose sum is σ = 1007694. Its totient is φ = 335896.

The previous prime is 671791. The next prime is 671831. The reversal of 671794 is 497176.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 664225 + 7569 = 815^2 + 87^2 .

It is a plaindrome in base 9.

It is not an unprimeable number, because it can be changed into a prime (671791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 167947 + ... + 167950.

2⁶⁷¹⁷⁹⁴ is an apocalyptic number.

671794 is a deficient number, since it is larger than the sum of its proper divisors (335900).

671794 is a wasteful number, since it uses less digits than its factorization.

671794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335899.

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

The square root of 671794 is about 819.6304045117. The cubic root of 671794 is about 87.5814316753.

The spelling of 671794 in words is "six hundred seventy-one thousand, seven hundred ninety-four".