2856081 has 8 divisors (see below), whose sum is σ = 3870784. Its totient is φ = 1872720.

The previous prime is 2856079. The next prime is 2856083. The reversal of 2856081 is 1806582.

It is an interprime number because it is at equal distance from previous prime (2856079) and next prime (2856083).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2856081 - 2¹ = 2856079 is a prime.

It is a super-2 number, since 2×2856081² = 16314397357122, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2856083) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7621 + ... + 7986.

It is an arithmetic number, because the mean of its divisors is an integer number (483848).

2^2856081 is an apocalyptic number.

It is an amenable number.

2856081 is a deficient number, since it is larger than the sum of its proper divisors (1014703).

2856081 is a wasteful number, since it uses less digits than its factorization.

2856081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15671.

The product of its (nonzero) digits is 3840, while the sum is 30.

The square root of 2856081 is about 1689.9943786889. The cubic root of 2856081 is about 141.8807601794.

The spelling of 2856081 in words is "two million, eight hundred fifty-six thousand, eighty-one".