671883717 has 4 divisors (see below), whose sum is σ = 895844960. Its totient is φ = 447922476.

The previous prime is 671883697. The next prime is 671883727. The reversal of 671883717 is 717388176.

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 not a de Polignac number, because 671883717 - 2⁸ = 671883461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671883727) 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, 111980617 + ... + 111980622.

It is an arithmetic number, because the mean of its divisors is an integer number (223961240).

Almost surely, 2^671883717 is an apocalyptic number.

It is an amenable number.

671883717 is a deficient number, since it is larger than the sum of its proper divisors (223961243).

671883717 is a wasteful number, since it uses less digits than its factorization.

671883717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223961242.

The product of its digits is 395136, while the sum is 48.

The square root of 671883717 is about 25920.7198395415. The cubic root of 671883717 is about 875.8533028782.

The spelling of 671883717 in words is "six hundred seventy-one million, eight hundred eighty-three thousand, seven hundred seventeen".