1979766 has 12 divisors (see below), whose sum is σ = 4289532. Its totient is φ = 659916.

The previous prime is 1979749. The next prime is 1979773. The reversal of 1979766 is 6679791.

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 5 ways as a sum of consecutive naturals, for example, 54976 + ... + 55011.

It is an arithmetic number, because the mean of its divisors is an integer number (357461).

2^1979766 is an apocalyptic number.

1979766 is an abundant number, since it is smaller than the sum of its proper divisors (2309766).

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

1979766 is a wasteful number, since it uses less digits than its factorization.

1979766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109995 (or 109992 counting only the distinct ones).

The product of its digits is 142884, while the sum is 45.

The square root of 1979766 is about 1407.0415772109. The cubic root of 1979766 is about 125.5657766440.

The spelling of 1979766 in words is "one million, nine hundred seventy-nine thousand, seven hundred sixty-six".