828748780 has 24 divisors (see below), whose sum is σ = 1755778752. Its totient is φ = 328564992.

The previous prime is 828748741. The next prime is 828748799. The reversal of 828748780 is 87847828.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 181092 + ... + 185611.

It is an arithmetic number, because the mean of its divisors is an integer number (73157448).

Almost surely, 2^828748780 is an apocalyptic number.

It is an amenable number.

828748780 is an abundant number, since it is smaller than the sum of its proper divisors (927029972).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

828748780 is a wasteful number, since it uses less digits than its factorization.

828748780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366825 (or 366823 counting only the distinct ones).

The product of its (nonzero) digits is 1605632, while the sum is 52.

The square root of 828748780 is about 28787.9971515908. The cubic root of 828748780 is about 939.3071626173.

The spelling of 828748780 in words is "eight hundred twenty-eight million, seven hundred forty-eight thousand, seven hundred eighty".