2857085 has 32 divisors (see below), whose sum is σ = 4402944. Its totient is φ = 1728000.

The previous prime is 2857079. The next prime is 2857093. The reversal of 2857085 is 5807582.

It is not a de Polignac number, because 2857085 - 2¹⁶ = 2791549 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

2857085 is a Rhonda number in base 8.

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 (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15695 + ... + 15875.

It is an arithmetic number, because the mean of its divisors is an integer number (137592).

2^2857085 is an apocalyptic number.

It is an amenable number.

2857085 is a deficient number, since it is larger than the sum of its proper divisors (1545859).

2857085 is a wasteful number, since it uses less digits than its factorization.

2857085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245.

The product of its (nonzero) digits is 22400, while the sum is 35.

The square root of 2857085 is about 1690.2913949967. The cubic root of 2857085 is about 141.8973833768.

The spelling of 2857085 in words is "two million, eight hundred fifty-seven thousand, eighty-five".