2979986 has 8 divisors (see below), whose sum is σ = 4574064. Its totient is φ = 1455300.

The previous prime is 2979971. The next prime is 2979989. The reversal of 2979986 is 6899792.

2979986 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a d-powerful number, because it can be written as 2²¹ + 9 + 7⁷ + 9 + 9⁵ + 8 + 6³ .

It is a Curzon number.

It is a nialpdrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (2979989) 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 3 ways as a sum of consecutive naturals, for example, 17240 + ... + 17411.

It is an arithmetic number, because the mean of its divisors is an integer number (571758).

2^2979986 is an apocalyptic number.

2979986 is a deficient number, since it is larger than the sum of its proper divisors (1594078).

2979986 is a wasteful number, since it uses less digits than its factorization.

2979986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34696.

The product of its digits is 489888, while the sum is 50.

The square root of 2979986 is about 1726.2635951673. The cubic root of 2979986 is about 143.9035169016.

The spelling of 2979986 in words is "two million, nine hundred seventy-nine thousand, nine hundred eighty-six".