2821925 has 6 divisors (see below), whose sum is σ = 3499218. Its totient is φ = 2257520.

The previous prime is 2821919. The next prime is 2821933. The reversal of 2821925 is 5291282.

2821925 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 6241 + 2815684 = 79^2 + 1678^2 .

It is not a de Polignac number, because 2821925 - 2⁴ = 2821909 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 56414 + ... + 56463.

It is an arithmetic number, because the mean of its divisors is an integer number (583203).

2^2821925 is an apocalyptic number.

2821925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2821925 is a deficient number, since it is larger than the sum of its proper divisors (677293).

2821925 is a wasteful number, since it uses less digits than its factorization.

2821925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112887 (or 112882 counting only the distinct ones).

The product of its digits is 2880, while the sum is 29.

The square root of 2821925 is about 1679.8586250039. The cubic root of 2821925 is about 141.3129043442.

The spelling of 2821925 in words is "two million, eight hundred twenty-one thousand, nine hundred twenty-five".