89533 has 2 divisors, whose sum is σ = 89534. Its totient is φ = 89532.

The previous prime is 89527. The next prime is 89561. The reversal of 89533 is 33598.

It is a happy number.

It is an a-pointer prime, because the next prime (89561) can be obtained adding 89533 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 88804 + 729 = 298^2 + 27^2 .

It is a cyclic number.

It is not a de Polignac number, because 89533 - 2⁵ = 89501 is a prime.

89533 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44766 + 44767.

It is an arithmetic number, because the mean of its divisors is an integer number (44767).

2⁸⁹⁵³³ is an apocalyptic number.

It is an amenable number.

89533 is a deficient number, since it is larger than the sum of its proper divisors (1).

89533 is an equidigital number, since it uses as much as digits as its factorization.

89533 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3240, while the sum is 28.

The square root of 89533 is about 299.2206543673. The cubic root of 89533 is about 44.7364013069.

The spelling of 89533 in words is "eighty-nine thousand, five hundred thirty-three".