1679871 has 8 divisors (see below), whose sum is σ = 2248240. Its totient is φ = 1115712.

The previous prime is 1679863. The next prime is 1679903. The reversal of 1679871 is 1789761.

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

It is not a de Polignac number, because 1679871 - 2³ = 1679863 is a prime.

It is a d-powerful number, because it can be written as 1 + 6 + 7⁷ + 9 + 8⁵ + 7⁷ + 1 .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1679801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45 + ... + 1833.

It is an arithmetic number, because the mean of its divisors is an integer number (281030).

2^1679871 is an apocalyptic number.

1679871 is a deficient number, since it is larger than the sum of its proper divisors (568369).

1679871 is a wasteful number, since it uses less digits than its factorization.

1679871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2105.

The product of its digits is 21168, while the sum is 39.

The square root of 1679871 is about 1296.0983758959. The cubic root of 1679871 is about 118.8753962554.

The spelling of 1679871 in words is "one million, six hundred seventy-nine thousand, eight hundred seventy-one".