8998644 has 24 divisors (see below), whose sum is σ = 22232448. Its totient is φ = 2823040.

The previous prime is 8998643. The next prime is 8998651. The reversal of 8998644 is 4468998.

8998644 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 8998593 and 8998602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8998643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21852 + ... + 22259.

It is an arithmetic number, because the mean of its divisors is an integer number (926352).

Almost surely, 2^8998644 is an apocalyptic number.

It is an amenable number.

8998644 is an abundant number, since it is smaller than the sum of its proper divisors (13233804).

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

8998644 is a wasteful number, since it uses less digits than its factorization.

8998644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44135 (or 44133 counting only the distinct ones).

The product of its digits is 497664, while the sum is 48.

The square root of 8998644 is about 2999.7739914867. The cubic root of 8998644 is about 207.9979351373.

The spelling of 8998644 in words is "eight million, nine hundred ninety-eight thousand, six hundred forty-four".