2793247021 has 2 divisors, whose sum is σ = 2793247022. Its totient is φ = 2793247020.

The previous prime is 2793247007. The next prime is 2793247049. The reversal of 2793247021 is 1207423972.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2093062500 + 700184521 = 45750^2 + 26461^2 .

It is a cyclic number.

It is not a de Polignac number, because 2793247021 - 2¹¹ = 2793244973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2793247001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1396623510 + 1396623511.

It is an arithmetic number, because the mean of its divisors is an integer number (1396623511).

Almost surely, 2^2793247021 is an apocalyptic number.

It is an amenable number.

2793247021 is a deficient number, since it is larger than the sum of its proper divisors (1).

2793247021 is an equidigital number, since it uses as much as digits as its factorization.

2793247021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 42336, while the sum is 37.

The square root of 2793247021 is about 52851.1780474192. The cubic root of 2793247021 is about 1408.3257328239.

The spelling of 2793247021 in words is "two billion, seven hundred ninety-three million, two hundred forty-seven thousand, twenty-one".