91482209 has 16 divisors (see below), whose sum is σ = 116229120. Its totient is φ = 70044480.

The previous prime is 91482197. The next prime is 91482217. The reversal of 91482209 is 90228419.

It is a cyclic number.

It is not a de Polignac number, because 91482209 - 2¹⁶ = 91416673 is a prime.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (91482229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13394 + ... + 19035.

It is an arithmetic number, because the mean of its divisors is an integer number (7264320).

Almost surely, 2^91482209 is an apocalyptic number.

It is an amenable number.

91482209 is a deficient number, since it is larger than the sum of its proper divisors (24746911).

91482209 is a wasteful number, since it uses less digits than its factorization.

91482209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32480.

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 91482209 is about 9564.6332391786. The cubic root of 91482209 is about 450.5872317071.

The spelling of 91482209 in words is "ninety-one million, four hundred eighty-two thousand, two hundred nine".