2782566 has 24 divisors (see below), whose sum is σ = 6210840. Its totient is φ = 923436.

The previous prime is 2782523. The next prime is 2782567. The reversal of 2782566 is 6652872.

It is a self number, because there is not a number n which added to its sum of digits gives 2782566.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2782567) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12145 + ... + 12371.

It is an arithmetic number, because the mean of its divisors is an integer number (258785).

2^2782566 is an apocalyptic number.

2782566 is an abundant number, since it is smaller than the sum of its proper divisors (3428274).

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

2782566 is an equidigital number, since it uses as much as digits as its factorization.

2782566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 465 (or 232 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 2782566 is about 1668.1025148353. The cubic root of 2782566 is about 140.6528353788.

The spelling of 2782566 in words is "two million, seven hundred eighty-two thousand, five hundred sixty-six".