89471844 has 288 divisors, whose sum is σ = 310262400. Its totient is φ = 22014720.

The previous prime is 89471843. The next prime is 89471869. The reversal of 89471844 is 44817498.

It is a self number, because there is not a number n which added to its sum of digits gives 89471844.

It is not an unprimeable number, because it can be changed into a prime (89471843) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1688122 + ... + 1688174.

It is an arithmetic number, because the mean of its divisors is an integer number (1077300).

Almost surely, 2^89471844 is an apocalyptic number.

89471844 is a gapful number since it is divisible by the number (84) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 89471844, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (155131200).

89471844 is an abundant number, since it is smaller than the sum of its proper divisors (220790556).

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

89471844 is a wasteful number, since it uses less digits than its factorization.

89471844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120 (or 105 counting only the distinct ones).

The product of its digits is 258048, while the sum is 45.

The square root of 89471844 is about 9458.9557563190. The cubic root of 89471844 is about 447.2621317321.

The spelling of 89471844 in words is "eighty-nine million, four hundred seventy-one thousand, eight hundred forty-four".