828728673 has 8 divisors (see below), whose sum is σ = 1140615936. Its totient is φ = 534663600.

The previous prime is 828728671. The next prime is 828728687. The reversal of 828728673 is 376827828.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 828728673 - 2¹ = 828728671 is a prime.

It is not an unprimeable number, because it can be changed into a prime (828728671) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4455438 + ... + 4455623.

It is an arithmetic number, because the mean of its divisors is an integer number (142576992).

Almost surely, 2^828728673 is an apocalyptic number.

It is an amenable number.

828728673 is a deficient number, since it is larger than the sum of its proper divisors (311887263).

828728673 is a wasteful number, since it uses less digits than its factorization.

828728673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8911095.

The product of its digits is 1806336, while the sum is 51.

The square root of 828728673 is about 28787.6479240663. The cubic root of 828728673 is about 939.2995661046.

The spelling of 828728673 in words is "eight hundred twenty-eight million, seven hundred twenty-eight thousand, six hundred seventy-three".