1979673 has 8 divisors (see below), whose sum is σ = 2667168. Its totient is φ = 1305984.

The previous prime is 1979617. The next prime is 1979683. The reversal of 1979673 is 3769791.

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

It is not a de Polignac number, because 1979673 - 2⁶ = 1979609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1979683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3111 + ... + 3692.

It is an arithmetic number, because the mean of its divisors is an integer number (333396).

2^1979673 is an apocalyptic number.

It is an amenable number.

1979673 is a deficient number, since it is larger than the sum of its proper divisors (687495).

1979673 is an equidigital number, since it uses as much as digits as its factorization.

1979673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6903.

The product of its digits is 71442, while the sum is 42.

The square root of 1979673 is about 1407.0085287588. The cubic root of 1979673 is about 125.5638104521.

It can be divided in two parts, 197 and 9673, that added together give a triangular number (9870 = T₁₄₀).

The spelling of 1979673 in words is "one million, nine hundred seventy-nine thousand, six hundred seventy-three".