2803878 has 108 divisors (see below), whose sum is σ = 8189532. Its totient is φ = 685440.

The previous prime is 2803877. The next prime is 2803891. The reversal of 2803878 is 8783082.

It is a zygodrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2803873) by changing a digit.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 164926 + ... + 164942.

It is an arithmetic number, because the mean of its divisors is an integer number (75829).

2^2803878 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2803878, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4094766).

2803878 is an abundant number, since it is smaller than the sum of its proper divisors (5385654).

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

2803878 is a wasteful number, since it uses less digits than its factorization.

2803878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67 (or 40 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 2803878 is about 1674.4784262570. The cubic root of 2803878 is about 141.0110146820.

The spelling of 2803878 in words is "two million, eight hundred three thousand, eight hundred seventy-eight".