2878566 has 8 divisors (see below), whose sum is σ = 5757144. Its totient is φ = 959520.

The previous prime is 2878543. The next prime is 2878573. The reversal of 2878566 is 6658782.

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

2878566 is an admirable number.

It is a super-2 number, since 2×2878566² = 16572284432712, which contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 239875 + ... + 239886.

It is an arithmetic number, because the mean of its divisors is an integer number (719643).

2^2878566 is an apocalyptic number.

2878566 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2878566 is a wasteful number, since it uses less digits than its factorization.

2878566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 479766.

The product of its digits is 161280, while the sum is 42.

The square root of 2878566 is about 1696.6337259409. The cubic root of 2878566 is about 142.2521144398.

The spelling of 2878566 in words is "two million, eight hundred seventy-eight thousand, five hundred sixty-six".