671713 has 4 divisors (see below), whose sum is σ = 767680. Its totient is φ = 575748.

The previous prime is 671701. The next prime is 671717. The reversal of 671713 is 317176.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 671713 - 2⁵ = 671681 is a prime.

It is a Duffinian number.

It is a plaindrome in base 9.

It is not an unprimeable number, because it can be changed into a prime (671717) 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, 47973 + ... + 47986.

It is an arithmetic number, because the mean of its divisors is an integer number (191920).

2⁶⁷¹⁷¹³ is an apocalyptic number.

It is an amenable number.

671713 is a deficient number, since it is larger than the sum of its proper divisors (95967).

671713 is an equidigital number, since it uses as much as digits as its factorization.

671713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95966.

The product of its digits is 882, while the sum is 25.

The square root of 671713 is about 819.5809905067. The cubic root of 671713 is about 87.5779115580.

Adding to 671713 its reverse (317176), we get a palindrome (988889).

The spelling of 671713 in words is "six hundred seventy-one thousand, seven hundred thirteen".