898722612 has 144 divisors (see below), whose sum is σ = 2509258752. Its totient is φ = 269982720.

The previous prime is 898722611. The next prime is 898722647. The reversal of 898722612 is 216227898.

898722612 is a `hidden beast` number, since 8 + 9 + 8 + 7 + 22 + 612 = 666.

898722612 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (898722611) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2409258 + ... + 2409630.

It is an arithmetic number, because the mean of its divisors is an integer number (17425408).

Almost surely, 2^898722612 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 898722612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1254629376).

898722612 is an abundant number, since it is smaller than the sum of its proper divisors (1610536140).

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

898722612 is a wasteful number, since it uses less digits than its factorization.

898722612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 558 (or 553 counting only the distinct ones).

The product of its digits is 193536, while the sum is 45.

The square root of 898722612 is about 29978.7026403745. The cubic root of 898722612 is about 965.0323888652.

The spelling of 898722612 in words is "eight hundred ninety-eight million, seven hundred twenty-two thousand, six hundred twelve".