2784546 has 36 divisors (see below), whose sum is σ = 6255522. Its totient is φ = 895104.

The previous prime is 2784539. The next prime is 2784547. The reversal of 2784546 is 6454872.

2784546 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 3 ways, for example, as 2595321 + 189225 = 1611^2 + 435^2 .

It is a super-2 number, since 2×2784546² = 15507392852232, which contains 22 as substring.

It is an Ulam number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2784546.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2784547) 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 17 ways as a sum of consecutive naturals, for example, 24586 + ... + 24698.

2^2784546 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2784546, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3127761).

2784546 is an abundant number, since it is smaller than the sum of its proper divisors (3470976).

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

2784546 is a wasteful number, since it uses less digits than its factorization.

2784546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195 (or 155 counting only the distinct ones).

The product of its digits is 53760, while the sum is 36.

The square root of 2784546 is about 1668.6958979994. The cubic root of 2784546 is about 140.6861890751.

The spelling of 2784546 in words is "two million, seven hundred eighty-four thousand, five hundred forty-six".