89401536 has 224 divisors, whose sum is σ = 316992000. Its totient is φ = 24136704.

The previous prime is 89401531. The next prime is 89401547. The reversal of 89401536 is 63510498.

89401536 is a `hidden beast` number, since 89 + 40 + 1 + 536 = 666.

It is a tau number, because it is divible by the number of its divisors (224).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 89401536.

It is not an unprimeable number, because it can be changed into a prime (89401531) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 229630 + ... + 230018.

Almost surely, 2^89401536 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 89401536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158496000).

89401536 is an abundant number, since it is smaller than the sum of its proper divisors (227590464).

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

89401536 is a wasteful number, since it uses less digits than its factorization.

89401536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436 (or 420 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 89401536 is about 9455.2385480219. The cubic root of 89401536 is about 447.1449464626.

The spelling of 89401536 in words is "eighty-nine million, four hundred one thousand, five hundred thirty-six".