1979218 has 8 divisors (see below), whose sum is σ = 3004848. Its totient is φ = 977604.

The previous prime is 1979209. The next prime is 1979227. The reversal of 1979218 is 8129791.

It is an interprime number because it is at equal distance from previous prime (1979209) and next prime (1979227).

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

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 5796 + ... + 6127.

It is an arithmetic number, because the mean of its divisors is an integer number (375606).

2^1979218 is an apocalyptic number.

1979218 is a deficient number, since it is larger than the sum of its proper divisors (1025630).

1979218 is a wasteful number, since it uses less digits than its factorization.

1979218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12008.

The product of its digits is 9072, while the sum is 37.

The square root of 1979218 is about 1406.8468289050. The cubic root of 1979218 is about 125.5541900229.

It can be divided in two parts, 1979 and 218, that added together give a cube (2197 = 13³).

The spelling of 1979218 in words is "one million, nine hundred seventy-nine thousand, two hundred eighteen".