2796981 has 16 divisors (see below), whose sum is σ = 4105728. Its totient is φ = 1679600.

The previous prime is 2796977. The next prime is 2797019. The reversal of 2796981 is 1896972.

It is a cyclic number.

It is not a de Polignac number, because 2796981 - 2² = 2796977 is a prime.

It is a super-2 number, since 2×2796981² = 15646205428722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2796901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4000 + ... + 4646.

It is an arithmetic number, because the mean of its divisors is an integer number (256608).

2^2796981 is an apocalyptic number.

It is an amenable number.

2796981 is a deficient number, since it is larger than the sum of its proper divisors (1308747).

2796981 is a wasteful number, since it uses less digits than its factorization.

2796981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 792.

The product of its digits is 54432, while the sum is 42.

The square root of 2796981 is about 1672.4177109801. The cubic root of 2796981 is about 140.8952997697.

Subtracting from 2796981 its reverse (1896972), we obtain a palindrome (900009).

It can be divided in two parts, 279 and 6981, that added together give a triangular number (7260 = T₁₂₀).

The spelling of 2796981 in words is "two million, seven hundred ninety-six thousand, nine hundred eighty-one".