91384 has 8 divisors (see below), whose sum is σ = 171360. Its totient is φ = 45688.

The previous prime is 91381. The next prime is 91387. The reversal of 91384 is 48319.

It is an interprime number because it is at equal distance from previous prime (91381) and next prime (91387).

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

It is a super-3 number, since 3×91384³ = 2289453072333312, which contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5704 + ... + 5719.

It is an arithmetic number, because the mean of its divisors is an integer number (21420).

2⁹¹³⁸⁴ is an apocalyptic number.

It is an amenable number.

91384 is a deficient number, since it is larger than the sum of its proper divisors (79976).

91384 is a wasteful number, since it uses less digits than its factorization.

91384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11429 (or 11425 counting only the distinct ones).

The product of its digits is 864, while the sum is 25.

The square root of 91384 is about 302.2978663504. The cubic root of 91384 is about 45.0425934166.

The spelling of 91384 in words is "ninety-one thousand, three hundred eighty-four".