89909201 has 4 divisors (see below), whose sum is σ = 89928804. Its totient is φ = 89889600.

The previous prime is 89909191. The next prime is 89909213. The reversal of 89909201 is 10290998.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 29691601 + 60217600 = 5449^2 + 7760^2 .

It is a cyclic number.

It is not a de Polignac number, because 89909201 - 2¹⁸ = 89647057 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (89999201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1181 + ... + 13461.

It is an arithmetic number, because the mean of its divisors is an integer number (22482201).

Almost surely, 2^89909201 is an apocalyptic number.

89909201 is the 4241-st centered decagonal number.

It is an amenable number.

89909201 is a deficient number, since it is larger than the sum of its proper divisors (19603).

89909201 is a wasteful number, since it uses less digits than its factorization.

89909201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19602.

The product of its (nonzero) digits is 11664, while the sum is 38.

The square root of 89909201 is about 9482.0462454050. The cubic root of 89909201 is about 447.9897176238.

The spelling of 89909201 in words is "eighty-nine million, nine hundred nine thousand, two hundred one".