2856061 has 16 divisors (see below), whose sum is σ = 3351040. Its totient is φ = 2410560.

The previous prime is 2856059. The next prime is 2856079. The reversal of 2856061 is 1606582.

It is not a de Polignac number, because 2856061 - 2¹ = 2856059 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2856001) 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 15 ways as a sum of consecutive naturals, for example, 7471 + ... + 7843.

It is an arithmetic number, because the mean of its divisors is an integer number (209440).

2^2856061 is an apocalyptic number.

It is an amenable number.

2856061 is a deficient number, since it is larger than the sum of its proper divisors (494979).

2856061 is a wasteful number, since it uses less digits than its factorization.

2856061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 2856061 is about 1689.9884614991. The cubic root of 2856061 is about 141.8804290004.

The spelling of 2856061 in words is "two million, eight hundred fifty-six thousand, sixty-one".