802779353 has 2 divisors, whose sum is σ = 802779354. Its totient is φ = 802779352.

The previous prime is 802779347. The next prime is 802779391. The reversal of 802779353 is 353977208.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 627402304 + 175377049 = 25048^2 + 13243^2 .

It is a cyclic number.

It is not a de Polignac number, because 802779353 - 2¹⁶ = 802713817 is a prime.

It is not a weakly prime, because it can be changed into another prime (802779553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 401389676 + 401389677.

It is an arithmetic number, because the mean of its divisors is an integer number (401389677).

Almost surely, 2^802779353 is an apocalyptic number.

It is an amenable number.

802779353 is a deficient number, since it is larger than the sum of its proper divisors (1).

802779353 is an equidigital number, since it uses as much as digits as its factorization.

802779353 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 317520, while the sum is 44.

The square root of 802779353 is about 28333.3611313589. The cubic root of 802779353 is about 929.3915752963.

The spelling of 802779353 in words is "eight hundred two million, seven hundred seventy-nine thousand, three hundred fifty-three".