2825789 has 4 divisors (see below), whose sum is σ = 2923260. Its totient is φ = 2728320.

The previous prime is 2825783. The next prime is 2825819. The reversal of 2825789 is 9875282.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9875282 = 2 ⋅4937641.

It can be written as a sum of positive squares in 2 ways, for example, as 1243225 + 1582564 = 1115^2 + 1258^2 .

It is not a de Polignac number, because 2825789 - 2⁴ = 2825773 is a prime.

It is a d-powerful number, because it can be written as 2² + 8 + 2²¹ + 5⁸ + 7⁵ + 8⁶ + 9⁵ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2825783) 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 3 ways as a sum of consecutive naturals, for example, 48692 + ... + 48749.

It is an arithmetic number, because the mean of its divisors is an integer number (730815).

2^2825789 is an apocalyptic number.

2825789 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

2825789 is a deficient number, since it is larger than the sum of its proper divisors (97471).

2825789 is an equidigital number, since it uses as much as digits as its factorization.

2825789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97470.

The product of its digits is 80640, while the sum is 41.

The square root of 2825789 is about 1681.0083283553. The cubic root of 2825789 is about 141.3773738143.

The spelling of 2825789 in words is "two million, eight hundred twenty-five thousand, seven hundred eighty-nine".