828493161 has 4 divisors (see below), whose sum is σ = 1104657552. Its totient is φ = 552328772.

The previous prime is 828493151. The next prime is 828493187. The reversal of 828493161 is 161394828.

828493161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 828493161 - 2⁵ = 828493129 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (828493151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138082191 + ... + 138082196.

It is an arithmetic number, because the mean of its divisors is an integer number (276164388).

Almost surely, 2^828493161 is an apocalyptic number.

It is an amenable number.

828493161 is a deficient number, since it is larger than the sum of its proper divisors (276164391).

828493161 is a wasteful number, since it uses less digits than its factorization.

828493161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276164390.

The product of its digits is 82944, while the sum is 42.

The square root of 828493161 is about 28783.5571290277. The cubic root of 828493161 is about 939.2105794896.

The spelling of 828493161 in words is "eight hundred twenty-eight million, four hundred ninety-three thousand, one hundred sixty-one".