2798323805 has 8 divisors (see below), whose sum is σ = 3358300344. Its totient is φ = 2238451200.

The previous prime is 2798323799. The next prime is 2798323817. The reversal of 2798323805 is 5083238972.

It can be written as a sum of positive squares in 4 ways, for example, as 21771556 + 2776552249 = 4666^2 + 52693^2 .

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

It is not a de Polignac number, because 2798323805 - 2⁴ = 2798323789 is a prime.

It is a super-2 number, since 2×2798323805² = 15661232235259356050, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2798323805.

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, 57845 + ... + 94565.

It is an arithmetic number, because the mean of its divisors is an integer number (419787543).

Almost surely, 2^2798323805 is an apocalyptic number.

It is an amenable number.

2798323805 is a deficient number, since it is larger than the sum of its proper divisors (559976539).

2798323805 is a wasteful number, since it uses less digits than its factorization.

2798323805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51967.

The product of its (nonzero) digits is 725760, while the sum is 47.

The square root of 2798323805 is about 52899.1852961839. The cubic root of 2798323805 is about 1409.1784367734.

The spelling of 2798323805 in words is "two billion, seven hundred ninety-eight million, three hundred twenty-three thousand, eight hundred five".