898784720 has 20 divisors (see below), whose sum is σ = 2089674660. Its totient is φ = 359513856.

The previous prime is 898784633. The next prime is 898784827. The reversal of 898784720 is 27487898.

It is a happy number.

898784720 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 678915136 + 219869584 = 26056^2 + 14828^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5617325 + ... + 5617484.

It is an arithmetic number, because the mean of its divisors is an integer number (104483733).

Almost surely, 2^898784720 is an apocalyptic number.

898784720 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

898784720 is an abundant number, since it is smaller than the sum of its proper divisors (1190889940).

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

898784720 is a wasteful number, since it uses less digits than its factorization.

898784720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11234822 (or 11234816 counting only the distinct ones).

The product of its (nonzero) digits is 1806336, while the sum is 53.

The square root of 898784720 is about 29979.7384911877. The cubic root of 898784720 is about 965.0546185091.

The spelling of 898784720 in words is "eight hundred ninety-eight million, seven hundred eighty-four thousand, seven hundred twenty".