2177528828 has 6 divisors (see below), whose sum is σ = 3810675456. Its totient is φ = 1088764412.

The previous prime is 2177528813. The next prime is 2177528833. The reversal of 2177528828 is 8288257712.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 272191100 + ... + 272191107.

It is an arithmetic number, because the mean of its divisors is an integer number (635112576).

Almost surely, 2^2177528828 is an apocalyptic number.

It is an amenable number.

2177528828 is a deficient number, since it is larger than the sum of its proper divisors (1633146628).

2177528828 is a wasteful number, since it uses less digits than its factorization.

2177528828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 544382211 (or 544382209 counting only the distinct ones).

The product of its digits is 1003520, while the sum is 50.

The square root of 2177528828 is about 46663.9992713869. Note that the first 3 decimals coincide. The cubic root of 2177528828 is about 1296.1481304226.

The spelling of 2177528828 in words is "two billion, one hundred seventy-seven million, five hundred twenty-eight thousand, eight hundred twenty-eight".