2784625 has 8 divisors (see below), whose sum is σ = 3475368. Its totient is φ = 2227600.

The previous prime is 2784619. The next prime is 2784629. The reversal of 2784625 is 5264872.

It can be written as a sum of positive squares in 4 ways, for example, as 2401 + 2782224 = 49^2 + 1668^2 .

It is not a de Polignac number, because 2784625 - 2⁹ = 2784113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2784629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11014 + ... + 11263.

It is an arithmetic number, because the mean of its divisors is an integer number (434421).

2^2784625 is an apocalyptic number.

2784625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2784625 is a deficient number, since it is larger than the sum of its proper divisors (690743).

2784625 is an equidigital number, since it uses as much as digits as its factorization.

2784625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22292 (or 22282 counting only the distinct ones).

The product of its digits is 26880, while the sum is 34.

The square root of 2784625 is about 1668.7195690109. The cubic root of 2784625 is about 140.6875195258.

The spelling of 2784625 in words is "two million, seven hundred eighty-four thousand, six hundred twenty-five".