89591860 has 48 divisors (see below), whose sum is σ = 196664832. Its totient is φ = 34243200.

The previous prime is 89591851. The next prime is 89591861. The reversal of 89591860 is 6819598.

It is a self number, because there is not a number n which added to its sum of digits gives 89591860.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89591861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50590 + ... + 52330.

It is an arithmetic number, because the mean of its divisors is an integer number (4097184).

Almost surely, 2^89591860 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 89591860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98332416).

89591860 is an abundant number, since it is smaller than the sum of its proper divisors (107072972).

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

89591860 is a wasteful number, since it uses less digits than its factorization.

89591860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1864 (or 1862 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 46.

The square root of 89591860 is about 9465.2976709663. The cubic root of 89591860 is about 447.4620256365.

The spelling of 89591860 in words is "eighty-nine million, five hundred ninety-one thousand, eight hundred sixty".