2826981 has 20 divisors (see below), whose sum is σ = 4473612. Its totient is φ = 1772928.

The previous prime is 2826979. The next prime is 2826997. The reversal of 2826981 is 1896282.

2826981 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1846881 + 980100 = 1359^2 + 990^2 .

It is not a de Polignac number, because 2826981 - 2¹ = 2826979 is a prime.

It is a super-2 number, since 2×2826981² = 15983643148722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2826181) 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 in 19 ways as a sum of consecutive naturals, for example, 351 + ... + 2403.

2^2826981 is an apocalyptic number.

It is an amenable number.

2826981 is a deficient number, since it is larger than the sum of its proper divisors (1646631).

2826981 is a wasteful number, since it uses less digits than its factorization.

2826981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2082 (or 2073 counting only the distinct ones).

The product of its digits is 13824, while the sum is 36.

The square root of 2826981 is about 1681.3628400794. The cubic root of 2826981 is about 141.3972500494.

The spelling of 2826981 in words is "two million, eight hundred twenty-six thousand, nine hundred eighty-one".