2793978829 has 2 divisors, whose sum is σ = 2793978830. Its totient is φ = 2793978828.

The previous prime is 2793978809. The next prime is 2793978839. The reversal of 2793978829 is 9288793972.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2131945929 + 662032900 = 46173^2 + 25730^2 .

It is a cyclic number.

It is not a de Polignac number, because 2793978829 - 2¹¹ = 2793976781 is a prime.

It is a super-2 number, since 2×2793978829² = 15612635393800422482, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2793978809) 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, 1396989414 + 1396989415.

It is an arithmetic number, because the mean of its divisors is an integer number (1396989415).

Almost surely, 2^2793978829 is an apocalyptic number.

It is an amenable number.

2793978829 is a deficient number, since it is larger than the sum of its proper divisors (1).

2793978829 is an equidigital number, since it uses as much as digits as its factorization.

2793978829 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27433728, while the sum is 64.

The square root of 2793978829 is about 52858.1008834029. The cubic root of 2793978829 is about 1408.4487120471.

The spelling of 2793978829 in words is "two billion, seven hundred ninety-three million, nine hundred seventy-eight thousand, eight hundred twenty-nine".