2783445 has 32 divisors (see below), whose sum is σ = 5203200. Its totient is φ = 1270080.

The previous prime is 2783423. The next prime is 2783447. The reversal of 2783445 is 5443872.

It is not a de Polignac number, because 2783445 - 2⁷ = 2783317 is a prime.

It is a d-powerful number, because it can be written as 2⁷ + 7⁷ + 8 + 3⁸ + 4² + 4³ + 5⁹ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2783447) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4875 + ... + 5415.

It is an arithmetic number, because the mean of its divisors is an integer number (162600).

2^2783445 is an apocalyptic number.

It is an amenable number.

2783445 is a deficient number, since it is larger than the sum of its proper divisors (2419755).

2783445 is an equidigital number, since it uses as much as digits as its factorization.

2783445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 570 (or 556 counting only the distinct ones).

The product of its digits is 26880, while the sum is 33.

The square root of 2783445 is about 1668.3659670468. The cubic root of 2783445 is about 140.6676443508.

The spelling of 2783445 in words is "two million, seven hundred eighty-three thousand, four hundred forty-five".