89800133 has 2 divisors, whose sum is σ = 89800134. Its totient is φ = 89800132.

The previous prime is 89800079. The next prime is 89800163. The reversal of 89800133 is 33100898.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 79959364 + 9840769 = 8942^2 + 3137^2 .

It is a cyclic number.

It is not a de Polignac number, because 89800133 - 2¹² = 89796037 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 89800133.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89800163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44900066 + 44900067.

It is an arithmetic number, because the mean of its divisors is an integer number (44900067).

Almost surely, 2^89800133 is an apocalyptic number.

It is an amenable number.

89800133 is a deficient number, since it is larger than the sum of its proper divisors (1).

89800133 is an equidigital number, since it uses as much as digits as its factorization.

89800133 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 89800133 is about 9476.2932099002. The cubic root of 89800133 is about 447.8084936295.

Subtracting from 89800133 its sum of digits (32), we obtain a triangular number (89800101 = T₁₃₄₀₁).

The spelling of 89800133 in words is "eighty-nine million, eight hundred thousand, one hundred thirty-three".