91064 has 8 divisors (see below), whose sum is σ = 170760. Its totient is φ = 45528.

The previous prime is 91033. The next prime is 91079. The reversal of 91064 is 46019.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 91064.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5684 + ... + 5699.

It is an arithmetic number, because the mean of its divisors is an integer number (21345).

2⁹¹⁰⁶⁴ is an apocalyptic number.

It is an amenable number.

91064 is a deficient number, since it is larger than the sum of its proper divisors (79696).

91064 is a wasteful number, since it uses less digits than its factorization.

91064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11389 (or 11385 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 91064 is about 301.7681229023. The cubic root of 91064 is about 44.9899566064.

The spelling of 91064 in words is "ninety-one thousand, sixty-four".