2822661 has 8 divisors (see below), whose sum is σ = 4181760. Its totient is φ = 1881756.

The previous prime is 2822641. The next prime is 2822669. The reversal of 2822661 is 1662282.

It is not a de Polignac number, because 2822661 - 2¹⁴ = 2806277 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 104543 = 2822661 / (2 + 8 + 2 + 2 + 6 + 6 + 1).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2822669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52245 + ... + 52298.

It is an arithmetic number, because the mean of its divisors is an integer number (522720).

2^2822661 is an apocalyptic number.

It is an amenable number.

2822661 is a deficient number, since it is larger than the sum of its proper divisors (1359099).

2822661 is a wasteful number, since it uses less digits than its factorization.

2822661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104552 (or 104546 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

The square root of 2822661 is about 1680.0776767757. The cubic root of 2822661 is about 141.3251887785.

The spelling of 2822661 in words is "two million, eight hundred twenty-two thousand, six hundred sixty-one".