827445644 has 12 divisors (see below), whose sum is σ = 1468425168. Its totient is φ = 407895600.

The previous prime is 827445637. The next prime is 827445683. The reversal of 827445644 is 446544728.

It is a junction number, because it is equal to n+sod(n) for n = 827445595 and 827445604.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1456487 + ... + 1457054.

It is an arithmetic number, because the mean of its divisors is an integer number (122368764).

Almost surely, 2^827445644 is an apocalyptic number.

It is an amenable number.

827445644 is a deficient number, since it is larger than the sum of its proper divisors (640979524).

827445644 is a wasteful number, since it uses less digits than its factorization.

827445644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2913616 (or 2913614 counting only the distinct ones).

The product of its digits is 860160, while the sum is 44.

The square root of 827445644 is about 28765.3549256740. The cubic root of 827445644 is about 938.8145778366.

It can be divided in two parts, 82744 and 5644, that added together give a palindrome (88388).

The spelling of 827445644 in words is "eight hundred twenty-seven million, four hundred forty-five thousand, six hundred forty-four".