820908882 has 12 divisors (see below), whose sum is σ = 1778635950. Its totient is φ = 273636288.

The previous prime is 820908877. The next prime is 820908919. The reversal of 820908882 is 288809028.

It can be written as a sum of positive squares in only one way, i.e., 475283601 + 345625281 = 21801^2 + 18591^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22803007 + ... + 22803042.

Almost surely, 2^820908882 is an apocalyptic number.

820908882 is an abundant number, since it is smaller than the sum of its proper divisors (957727068).

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

820908882 is a wasteful number, since it uses less digits than its factorization.

820908882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45606057 (or 45606054 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 45.

The square root of 820908882 is about 28651.5074996064. The cubic root of 820908882 is about 936.3358495089.

The spelling of 820908882 in words is "eight hundred twenty million, nine hundred eight thousand, eight hundred eighty-two".