2805802 has 4 divisors (see below), whose sum is σ = 4208706. Its totient is φ = 1402900.

The previous prime is 2805791. The next prime is 2805809. The reversal of 2805802 is 2085082.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2556801 + 249001 = 1599^2 + 499^2 .

It is not an unprimeable number, because it can be changed into a prime (2805809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 701449 + ... + 701452.

2^2805802 is an apocalyptic number.

2805802 is a deficient number, since it is larger than the sum of its proper divisors (1402904).

2805802 is a wasteful number, since it uses less digits than its factorization.

2805802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1402903.

The product of its (nonzero) digits is 1280, while the sum is 25.

The square root of 2805802 is about 1675.0528349876. The cubic root of 2805802 is about 141.0432608734.

Adding to 2805802 its product of nonzero digits (1280), we get a palindrome (2807082).

The spelling of 2805802 in words is "two million, eight hundred five thousand, eight hundred two".