89788133 has 2 divisors, whose sum is σ = 89788134. Its totient is φ = 89788132.

The previous prime is 89788099. The next prime is 89788151. The reversal of 89788133 is 33188798.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 88774084 + 1014049 = 9422^2 + 1007^2 .

It is a cyclic number.

It is not a de Polignac number, because 89788133 - 2¹⁰ = 89787109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89788163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44894066 + 44894067.

It is an arithmetic number, because the mean of its divisors is an integer number (44894067).

Almost surely, 2^89788133 is an apocalyptic number.

It is an amenable number.

89788133 is a deficient number, since it is larger than the sum of its proper divisors (1).

89788133 is an equidigital number, since it uses as much as digits as its factorization.

89788133 is an evil number, because the sum of its binary digits is even.

The product of its digits is 290304, while the sum is 47.

The square root of 89788133 is about 9475.6600297816. The cubic root of 89788133 is about 447.7885458442.

The spelling of 89788133 in words is "eighty-nine million, seven hundred eighty-eight thousand, one hundred thirty-three".