89558069 has 2 divisors, whose sum is σ = 89558070. Its totient is φ = 89558068.

The previous prime is 89558059. The next prime is 89558071. The reversal of 89558069 is 96085598.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45495025 + 44063044 = 6745^2 + 6638^2 .

It is a cyclic number.

It is not a de Polignac number, because 89558069 - 2²⁴ = 72780853 is a prime.

It is a super-2 number, since 2×89558069² = 16041295446017522, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 89558071, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89558059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44779034 + 44779035.

It is an arithmetic number, because the mean of its divisors is an integer number (44779035).

Almost surely, 2^89558069 is an apocalyptic number.

It is an amenable number.

89558069 is a deficient number, since it is larger than the sum of its proper divisors (1).

89558069 is an equidigital number, since it uses as much as digits as its factorization.

89558069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 777600, while the sum is 50.

The square root of 89558069 is about 9463.5125085774. The cubic root of 89558069 is about 447.4057627474.

The spelling of 89558069 in words is "eighty-nine million, five hundred fifty-eight thousand, sixty-nine".