2177086828 has 36 divisors (see below), whose sum is σ = 4429476912. Its totient is φ = 916928640.

The previous prime is 2177086787. The next prime is 2177086867. The reversal of 2177086828 is 8286807712.

It is a super-2 number, since 2×2177086828² = 9479414113302203168, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1927768 + ... + 1928896.

Almost surely, 2^2177086828 is an apocalyptic number.

2177086828 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2177086828 is an abundant number, since it is smaller than the sum of its proper divisors (2252390084).

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

2177086828 is an equidigital number, since it uses as much as digits as its factorization.

2177086828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2330 (or 1199 counting only the distinct ones).

The product of its (nonzero) digits is 602112, while the sum is 49.

The square root of 2177086828 is about 46659.2630460448. The cubic root of 2177086828 is about 1296.0604260743.

The spelling of 2177086828 in words is "two billion, one hundred seventy-seven million, eighty-six thousand, eight hundred twenty-eight".