2798805 has 8 divisors (see below), whose sum is σ = 4478112. Its totient is φ = 1492688.

The previous prime is 2798777. The next prime is 2798821. The reversal of 2798805 is 5088972.

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

It is a cyclic number.

It is not a de Polignac number, because 2798805 - 2⁹ = 2798293 is a prime.

2798805 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93279 + ... + 93308.

It is an arithmetic number, because the mean of its divisors is an integer number (559764).

2^2798805 is an apocalyptic number.

It is an amenable number.

2798805 is a deficient number, since it is larger than the sum of its proper divisors (1679307).

2798805 is a wasteful number, since it uses less digits than its factorization.

2798805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186595.

The product of its (nonzero) digits is 40320, while the sum is 39.

The square root of 2798805 is about 1672.9629404144. The cubic root of 2798805 is about 140.9259205453.

The spelling of 2798805 in words is "two million, seven hundred ninety-eight thousand, eight hundred five".