2799806 has 8 divisors (see below), whose sum is σ = 4207464. Its totient is φ = 1397320.

The previous prime is 2799803. The next prime is 2799809. The reversal of 2799806 is 6089972.

It is an interprime number because it is at equal distance from previous prime (2799803) and next prime (2799809).

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

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2799803) by changing a digit.

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, 641 + ... + 2451.

It is an arithmetic number, because the mean of its divisors is an integer number (525933).

2^2799806 is an apocalyptic number.

2799806 is a deficient number, since it is larger than the sum of its proper divisors (1407658).

2799806 is a wasteful number, since it uses less digits than its factorization.

2799806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2586.

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 2799806 is about 1673.2620834765. The cubic root of 2799806 is about 140.9427193853.

The spelling of 2799806 in words is "two million, seven hundred ninety-nine thousand, eight hundred six".