2866505 has 16 divisors (see below), whose sum is σ = 3635280. Its totient is φ = 2166528.

The previous prime is 2866499. The next prime is 2866519. The reversal of 2866505 is 5056682.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 17161 + 2849344 = 131^2 + 1688^2 .

It is a cyclic number.

It is not a de Polignac number, because 2866505 - 2⁶ = 2866441 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 7499 + ... + 7871.

It is an arithmetic number, because the mean of its divisors is an integer number (227205).

2^2866505 is an apocalyptic number.

It is an amenable number.

2866505 is a deficient number, since it is larger than the sum of its proper divisors (768775).

2866505 is a wasteful number, since it uses less digits than its factorization.

2866505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 460.

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 2866505 is about 1693.0756037460. The cubic root of 2866505 is about 142.0531606816.

The spelling of 2866505 in words is "two million, eight hundred sixty-six thousand, five hundred five".