2887081 has 2 divisors, whose sum is σ = 2887082. Its totient is φ = 2887080.

The previous prime is 2887067. The next prime is 2887117. The reversal of 2887081 is 1807882.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2611456 + 275625 = 1616^2 + 525^2 .

It is a cyclic number.

It is not a de Polignac number, because 2887081 - 2¹⁷ = 2756009 is a prime.

It is a super-2 number, since 2×2887081² = 16670473401122, which contains 22 as substring.

2887081 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (2887021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1443540 + 1443541.

It is an arithmetic number, because the mean of its divisors is an integer number (1443541).

2^2887081 is an apocalyptic number.

It is an amenable number.

2887081 is a deficient number, since it is larger than the sum of its proper divisors (1).

2887081 is an equidigital number, since it uses as much as digits as its factorization.

2887081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7168, while the sum is 34.

The square root of 2887081 is about 1699.1412536926. The cubic root of 2887081 is about 142.3922402717.

The spelling of 2887081 in words is "two million, eight hundred eighty-seven thousand, eighty-one".