2802878 has 16 divisors (see below), whose sum is σ = 4598160. Its totient is φ = 1273536.

The previous prime is 2802871. The next prime is 2802881. The reversal of 2802878 is 8782082.

It is a super-2 number, since 2×2802878² = 15712250165768, which contains 22 as substring.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2802871) 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, 938 + ... + 2546.

It is an arithmetic number, because the mean of its divisors is an integer number (287385).

2^2802878 is an apocalyptic number.

2802878 is a deficient number, since it is larger than the sum of its proper divisors (1795282).

2802878 is a wasteful number, since it uses less digits than its factorization.

2802878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1691.

The product of its (nonzero) digits is 14336, while the sum is 35.

The square root of 2802878 is about 1674.1797991853. The cubic root of 2802878 is about 140.9942488810.

The spelling of 2802878 in words is "two million, eight hundred two thousand, eight hundred seventy-eight".