898772020 has 12 divisors (see below), whose sum is σ = 1887421284. Its totient is φ = 359508800.

The previous prime is 898772011. The next prime is 898772041. The reversal of 898772020 is 20277898.

It can be written as a sum of positive squares in 2 ways, for example, as 166203664 + 732568356 = 12892^2 + 27066^2 .

It is a super-2 number, since 2×898772020² = 1615582287869760800, which contains 22 as substring.

It is a congruent number.

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, 22469281 + ... + 22469320.

It is an arithmetic number, because the mean of its divisors is an integer number (157285107).

Almost surely, 2^898772020 is an apocalyptic number.

It is an amenable number.

898772020 is an abundant number, since it is smaller than the sum of its proper divisors (988649264).

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

898772020 is a wasteful number, since it uses less digits than its factorization.

898772020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44938610 (or 44938608 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 43.

The square root of 898772020 is about 29979.5266807200. The cubic root of 898772020 is about 965.0500730190.

The spelling of 898772020 in words is "eight hundred ninety-eight million, seven hundred seventy-two thousand, twenty".