828306665 has 8 divisors (see below), whose sum is σ = 997748928. Its totient is φ = 660124720.

The previous prime is 828306649. The next prime is 828306667. The reversal of 828306665 is 566603828.

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

It is not a de Polignac number, because 828306665 - 2⁴ = 828306649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (828306667) 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, 313631 + ... + 316260.

It is an arithmetic number, because the mean of its divisors is an integer number (124718616).

Almost surely, 2^828306665 is an apocalyptic number.

It is an amenable number.

828306665 is a deficient number, since it is larger than the sum of its proper divisors (169442263).

828306665 is a wasteful number, since it uses less digits than its factorization.

828306665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 630159.

The product of its (nonzero) digits is 414720, while the sum is 44.

The square root of 828306665 is about 28780.3173193070. The cubic root of 828306665 is about 939.1401012732.

The spelling of 828306665 in words is "eight hundred twenty-eight million, three hundred six thousand, six hundred sixty-five".