2856984 has 32 divisors (see below), whose sum is σ = 7692720. Its totient is φ = 878976.

The previous prime is 2856977. The next prime is 2857009. The reversal of 2856984 is 4896582.

It is a congruent number.

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, 4267 + ... + 4890.

2^2856984 is an apocalyptic number.

2856984 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2856984 is an abundant number, since it is smaller than the sum of its proper divisors (4835736).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2856984 is a wasteful number, since it uses less digits than its factorization.

2856984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9179 (or 9175 counting only the distinct ones).

The product of its digits is 138240, while the sum is 42.

The square root of 2856984 is about 1690.2615182273. The cubic root of 2856984 is about 141.8957112990.

The spelling of 2856984 in words is "two million, eight hundred fifty-six thousand, nine hundred eighty-four".