803796523209 has 81 divisors (see below), whose sum is σ = 1229320934751. Its totient is φ = 506082850560.

The previous prime is 803796523199. The next prime is 803796523217. The reversal of 803796523209 is 902325697308.

It is a happy number.

The square root of 803796523209 is 896547.

It is a perfect power (a square), and thus also a powerful number.

803796523209 is a `hidden beast` number, since 8 + 0 + 3 + 7 + 96 + 523 + 20 + 9 = 666.

It can be written as a sum of positive squares in 13 ways, for example, as 49816900809 + 753979622400 = 223197^2 + 868320^2 .

It is not a de Polignac number, because 803796523209 - 2⁵ = 803796523177 is a prime.

It is not an unprimeable number, because it can be changed into a prime (803796523009) 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 in 80 ways as a sum of consecutive naturals, for example, 4080185299 + ... + 4080185495.

Almost surely, 2^803796523209 is an apocalyptic number.

803796523209 is the 896547-th square number.

803796523209 is the 448274-th centered octagonal number.

It is an amenable number.

803796523209 is a deficient number, since it is larger than the sum of its proper divisors (425524411542).

803796523209 is an equidigital number, since it uses as much as digits as its factorization.

803796523209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556 (or 278 counting only the distinct ones).

The product of its (nonzero) digits is 4898880, while the sum is 54.

The spelling of 803796523209 in words is "eight hundred three billion, seven hundred ninety-six million, five hundred twenty-three thousand, two hundred nine".