89665038 has 48 divisors (see below), whose sum is σ = 206977680. Its totient is φ = 27955968.

The previous prime is 89665033. The next prime is 89665061. The reversal of 89665038 is 83056698.

89665038 is a `hidden beast` number, since 89 + 66 + 503 + 8 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 89664984 and 89665002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89665031) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 53956 + ... + 55592.

It is an arithmetic number, because the mean of its divisors is an integer number (4312035).

Almost surely, 2^89665038 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 89665038, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103488840).

89665038 is an abundant number, since it is smaller than the sum of its proper divisors (117312642).

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

89665038 is a wasteful number, since it uses less digits than its factorization.

89665038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1841 (or 1838 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The square root of 89665038 is about 9469.1624761644. The cubic root of 89665038 is about 447.5838204254.

The spelling of 89665038 in words is "eighty-nine million, six hundred sixty-five thousand, thirty-eight".