828005173 has 2 divisors, whose sum is σ = 828005174. Its totient is φ = 828005172.

The previous prime is 828005159. The next prime is 828005231. The reversal of 828005173 is 371500828.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 479697604 + 348307569 = 21902^2 + 18663^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-828005173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (828002173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 414002586 + 414002587.

It is an arithmetic number, because the mean of its divisors is an integer number (414002587).

Almost surely, 2^828005173 is an apocalyptic number.

It is an amenable number.

828005173 is a deficient number, since it is larger than the sum of its proper divisors (1).

828005173 is an equidigital number, since it uses as much as digits as its factorization.

828005173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13440, while the sum is 34.

The square root of 828005173 is about 28775.0790268246. The cubic root of 828005173 is about 939.0261428406.

The spelling of 828005173 in words is "eight hundred twenty-eight million, five thousand, one hundred seventy-three".