89885032009 has 2 divisors, whose sum is σ = 89885032010. Its totient is φ = 89885032008.

The previous prime is 89885032001. The next prime is 89885032051. The reversal of 89885032009 is 90023058898.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 89537395984 + 347636025 = 299228^2 + 18645^2 .

It is a cyclic number.

It is not a de Polignac number, because 89885032009 - 2³ = 89885032001 is a prime.

It is not a weakly prime, because it can be changed into another prime (89885032001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44942516004 + 44942516005.

It is an arithmetic number, because the mean of its divisors is an integer number (44942516005).

Almost surely, 2^89885032009 is an apocalyptic number.

It is an amenable number.

89885032009 is a deficient number, since it is larger than the sum of its proper divisors (1).

89885032009 is an equidigital number, since it uses as much as digits as its factorization.

89885032009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1244160, while the sum is 52.

The spelling of 89885032009 in words is "eighty-nine billion, eight hundred eighty-five million, thirty-two thousand, nine".