89663418 has 96 divisors (see below), whose sum is σ = 220605840. Its totient is φ = 26127360.

The previous prime is 89663417. The next prime is 89663419. The reversal of 89663418 is 81436698.

89663418 is a `hidden beast` number, since 8 + 9 + 6 + 634 + 1 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (89663417) and next prime (89663419).

It can be written as a sum of positive squares in 8 ways, for example, as 7634169 + 82029249 = 2763^2 + 9057^2 .

It is not an unprimeable number, because it can be changed into a prime (89663417) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 495288 + ... + 495468.

Almost surely, 2^89663418 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 89663418, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110302920).

89663418 is an abundant number, since it is smaller than the sum of its proper divisors (130942422).

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

89663418 is a wasteful number, since it uses less digits than its factorization.

89663418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304 (or 301 counting only the distinct ones).

The product of its digits is 248832, while the sum is 45.

The square root of 89663418 is about 9469.0769349499. The cubic root of 89663418 is about 447.5811248740.

The spelling of 89663418 in words is "eighty-nine million, six hundred sixty-three thousand, four hundred eighteen".