1979862 has 8 divisors (see below), whose sum is σ = 3959736. Its totient is φ = 659952.

The previous prime is 1979827. The next prime is 1979891. The reversal of 1979862 is 2689791.

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

1979862 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 nialpdrome in base 13.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 164983 + ... + 164994.

It is an arithmetic number, because the mean of its divisors is an integer number (494967).

2^1979862 is an apocalyptic number.

1979862 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.

1979862 is a wasteful number, since it uses less digits than its factorization.

1979862 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329982.

The product of its digits is 54432, while the sum is 42.

The square root of 1979862 is about 1407.0756909278. The cubic root of 1979862 is about 125.5678061970.

The spelling of 1979862 in words is "one million, nine hundred seventy-nine thousand, eight hundred sixty-two".