1679946 has 8 divisors (see below), whose sum is σ = 3359904. Its totient is φ = 559980.

The previous prime is 1679939. The next prime is 1679959. The reversal of 1679946 is 6499761.

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

1679946 is an admirable number.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a d-powerful number, because it can be written as 1 + 6 + 7² + 9 + 9 + 4⁴ + 6⁸ .

It is a junction number, because it is equal to n+sod(n) for n = 1679898 and 1679907.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 139990 + ... + 140001.

It is an arithmetic number, because the mean of its divisors is an integer number (419988).

2^1679946 is an apocalyptic number.

1679946 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1679946 is a wasteful number, since it uses less digits than its factorization.

1679946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279996.

The product of its digits is 81648, while the sum is 42.

The square root of 1679946 is about 1296.1273085619. The cubic root of 1679946 is about 118.8771653441.

The spelling of 1679946 in words is "one million, six hundred seventy-nine thousand, nine hundred forty-six".