2856259 has 12 divisors (see below), whose sum is σ = 3373488. Its totient is φ = 2410800.

The previous prime is 2856253. The next prime is 2856283. The reversal of 2856259 is 9526582.

It is a happy number.

2856259 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2856259 - 2⁹ = 2855747 is a prime.

It is a d-powerful number, because it can be written as 2¹⁸ + 8 + 5⁴ + 6⁶ + 2²¹ + 5⁸ + 9⁵ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2856253) 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 11 ways as a sum of consecutive naturals, for example, 3069 + ... + 3889.

It is an arithmetic number, because the mean of its divisors is an integer number (281124).

2^2856259 is an apocalyptic number.

2856259 is a deficient number, since it is larger than the sum of its proper divisors (517229).

2856259 is an equidigital number, since it uses as much as digits as its factorization.

2856259 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 906 (or 899 counting only the distinct ones).

The product of its digits is 43200, while the sum is 37.

The square root of 2856259 is about 1690.0470407654. The cubic root of 2856259 is about 141.8837076040.

The spelling of 2856259 in words is "two million, eight hundred fifty-six thousand, two hundred fifty-nine".