2799839 has 16 divisors (see below), whose sum is σ = 3333120. Its totient is φ = 2302560.

The previous prime is 2799833. The next prime is 2799847. The reversal of 2799839 is 9389972.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2799839 is a prime.

It is a d-powerful number, because it can be written as 2¹⁹ + 7⁶ + 9³ + 9³ + 8⁷ + 3⁵ + 9⁵ .

It is a junction number, because it is equal to n+sod(n) for n = 2799793 and 2799802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2799833) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33692 + ... + 33774.

It is an arithmetic number, because the mean of its divisors is an integer number (208320).

2^2799839 is an apocalyptic number.

2799839 is a deficient number, since it is larger than the sum of its proper divisors (533281).

2799839 is an equidigital number, since it uses as much as digits as its factorization.

2799839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230.

The product of its digits is 244944, while the sum is 47.

The square root of 2799839 is about 1673.2719444251. The cubic root of 2799839 is about 140.9432731250.

The spelling of 2799839 in words is "two million, seven hundred ninety-nine thousand, eight hundred thirty-nine".