2856996 has 36 divisors (see below), whose sum is σ = 7345884. Its totient is φ = 936000.

The previous prime is 2856977. The next prime is 2857009. The reversal of 2856996 is 6996582.

It can be written as a sum of positive squares in 2 ways, for example, as 34596 + 2822400 = 186^2 + 1680^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×2856996² = 16324852288032, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1546 + ... + 2846.

2^2856996 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2856996, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3672942).

2856996 is an abundant number, since it is smaller than the sum of its proper divisors (4488888).

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

2856996 is a wasteful number, since it uses less digits than its factorization.

2856996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1372 (or 1367 counting only the distinct ones).

The product of its digits is 233280, while the sum is 45.

The square root of 2856996 is about 1690.2650679701. The cubic root of 2856996 is about 141.8959099638.

The spelling of 2856996 in words is "two million, eight hundred fifty-six thousand, nine hundred ninety-six".