2798643399 has 32 divisors (see below), whose sum is σ = 4008257280. Its totient is φ = 1731704832.

The previous prime is 2798643373. The next prime is 2798643431. The reversal of 2798643399 is 9933468972.

It is not a de Polignac number, because 2798643399 - 2⁷ = 2798643271 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2798643319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 735169 + ... + 738965.

It is an arithmetic number, because the mean of its divisors is an integer number (125258040).

Almost surely, 2^2798643399 is an apocalyptic number.

2798643399 is a deficient number, since it is larger than the sum of its proper divisors (1209613881).

2798643399 is a wasteful number, since it uses less digits than its factorization.

2798643399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4079.

The product of its digits is 17635968, while the sum is 60.

The square root of 2798643399 is about 52902.2059937012. The cubic root of 2798643399 is about 1409.2320817243.

The spelling of 2798643399 in words is "two billion, seven hundred ninety-eight million, six hundred forty-three thousand, three hundred ninety-nine".