2979866 has 16 divisors (see below), whose sum is σ = 4687200. Its totient is φ = 1418928.

The previous prime is 2979863. The next prime is 2979877. The reversal of 2979866 is 6689792.

2979866 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 2979866.

It is not an unprimeable number, because it can be changed into a prime (2979863) 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, 4505 + ... + 5123.

It is an arithmetic number, because the mean of its divisors is an integer number (292950).

2^2979866 is an apocalyptic number.

2979866 is a deficient number, since it is larger than the sum of its proper divisors (1707334).

2979866 is a wasteful number, since it uses less digits than its factorization.

2979866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 733.

The product of its digits is 326592, while the sum is 47.

The square root of 2979866 is about 1726.2288376690. The cubic root of 2979866 is about 143.9015852758.

The spelling of 2979866 in words is "two million, nine hundred seventy-nine thousand, eight hundred sixty-six".