2798491693 has 4 divisors (see below), whose sum is σ = 2844368668. Its totient is φ = 2752614720.

The previous prime is 2798491681. The next prime is 2798491697. The reversal of 2798491693 is 3961948972.

2798491693 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 885479049 + 1913012644 = 29757^2 + 43738^2 .

It is a cyclic number.

It is not a de Polignac number, because 2798491693 - 2²¹ = 2796394541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2798491697) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22938396 + ... + 22938517.

It is an arithmetic number, because the mean of its divisors is an integer number (711092167).

Almost surely, 2^2798491693 is an apocalyptic number.

It is an amenable number.

2798491693 is a deficient number, since it is larger than the sum of its proper divisors (45876975).

2798491693 is an equidigital number, since it uses as much as digits as its factorization.

2798491693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45876974.

The product of its digits is 5878656, while the sum is 58.

The square root of 2798491693 is about 52900.7721399225. The cubic root of 2798491693 is about 1409.2066178602.

The spelling of 2798491693 in words is "two billion, seven hundred ninety-eight million, four hundred ninety-one thousand, six hundred ninety-three".