1679196671 has 4 divisors (see below), whose sum is σ = 1679642712. Its totient is φ = 1678750632.

The previous prime is 1679196637. The next prime is 1679196713. The reversal of 1679196671 is 1766919761.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1679196671 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 (1679196601) 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, 217325 + ... + 224918.

It is an arithmetic number, because the mean of its divisors is an integer number (419910678).

Almost surely, 2^1679196671 is an apocalyptic number.

1679196671 is a deficient number, since it is larger than the sum of its proper divisors (446041).

1679196671 is an equidigital number, since it uses as much as digits as its factorization.

1679196671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 446040.

The product of its digits is 857304, while the sum is 53.

The square root of 1679196671 is about 40978.0022817121. The cubic root of 1679196671 is about 1188.5948791971.

The spelling of 1679196671 in words is "one billion, six hundred seventy-nine million, one hundred ninety-six thousand, six hundred seventy-one".