808928361 has 6 divisors (see below), whose sum is σ = 1168452090. Its totient is φ = 539285568.

The previous prime is 808928333. The next prime is 808928369. The reversal of 808928361 is 163829808.

It can be written as a sum of positive squares in only one way, i.e., 803382336 + 5546025 = 28344^2 + 2355^2 .

It is not a de Polignac number, because 808928361 - 2⁶ = 808928297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (808928369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 44940456 + ... + 44940473.

It is an arithmetic number, because the mean of its divisors is an integer number (194742015).

Almost surely, 2^808928361 is an apocalyptic number.

It is an amenable number.

808928361 is a deficient number, since it is larger than the sum of its proper divisors (359523729).

808928361 is a wasteful number, since it uses less digits than its factorization.

808928361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89880935 (or 89880932 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 45.

The square root of 808928361 is about 28441.6659322199. The cubic root of 808928361 is about 931.7584800474.

It can be divided in two parts, 80892 and 8361, that added together give a triangular number (89253 = T₄₂₂).

The spelling of 808928361 in words is "eight hundred eight million, nine hundred twenty-eight thousand, three hundred sixty-one".