2684866 has 4 divisors (see below), whose sum is σ = 4027302. Its totient is φ = 1342432.

The previous prime is 2684837. The next prime is 2684881. The reversal of 2684866 is 6684862.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1901641 + 783225 = 1379^2 + 885^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 671215 + ... + 671218.

2^2684866 is an apocalyptic number.

2684866 is a deficient number, since it is larger than the sum of its proper divisors (1342436).

2684866 is a wasteful number, since it uses less digits than its factorization.

2684866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1342435.

The product of its digits is 110592, while the sum is 40.

The square root of 2684866 is about 1638.5560716680. The cubic root of 2684866 is about 138.9870077396.

The spelling of 2684866 in words is "two million, six hundred eighty-four thousand, eight hundred sixty-six".