2684986 has 4 divisors (see below), whose sum is σ = 4027482. Its totient is φ = 1342492.

The previous prime is 2684977. The next prime is 2684989. The reversal of 2684986 is 6894862.

It is a happy number.

2684986 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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., 1485961 + 1199025 = 1219^2 + 1095^2 .

It is not an unprimeable number, because it can be changed into a prime (2684989) 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 as a sum of consecutive naturals, namely, 671245 + ... + 671248.

2^2684986 is an apocalyptic number.

2684986 is a deficient number, since it is larger than the sum of its proper divisors (1342496).

2684986 is a wasteful number, since it uses less digits than its factorization.

2684986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1342495.

The product of its digits is 165888, while the sum is 43.

The square root of 2684986 is about 1638.5926888644. The cubic root of 2684986 is about 138.9890783821.

The spelling of 2684986 in words is "two million, six hundred eighty-four thousand, nine hundred eighty-six".