89355644 has 48 divisors (see below), whose sum is σ = 188697600. Its totient is φ = 36195456.

The previous prime is 89355631. The next prime is 89355649. The reversal of 89355644 is 44655398.

It is a super-2 number, since 2×89355644² = 15968862229309472, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 89355595 and 89355604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89355649) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56537 + ... + 58095.

It is an arithmetic number, because the mean of its divisors is an integer number (3931200).

Almost surely, 2^89355644 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 89355644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94348800).

89355644 is an abundant number, since it is smaller than the sum of its proper divisors (99341956).

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

89355644 is a wasteful number, since it uses less digits than its factorization.

89355644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1682 (or 1680 counting only the distinct ones).

The product of its digits is 518400, while the sum is 44.

The square root of 89355644 is about 9452.8114336424. The cubic root of 89355644 is about 447.0684232133.

The spelling of 89355644 in words is "eighty-nine million, three hundred fifty-five thousand, six hundred forty-four".