2683978 has 16 divisors (see below), whose sum is σ = 4623840. Its totient is φ = 1155600.

The previous prime is 2683903. The next prime is 2683981. The reversal of 2683978 is 8793862.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2793 + ... + 3628.

It is an arithmetic number, because the mean of its divisors is an integer number (288990).

2^2683978 is an apocalyptic number.

2683978 is a deficient number, since it is larger than the sum of its proper divisors (1939862).

2683978 is a wasteful number, since it uses less digits than its factorization.

2683978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6453.

The product of its digits is 145152, while the sum is 43.

The square root of 2683978 is about 1638.2850789774. The cubic root of 2683978 is about 138.9716830677.

The spelling of 2683978 in words is "two million, six hundred eighty-three thousand, nine hundred seventy-eight".