91347 has 4 divisors (see below), whose sum is σ = 121800. Its totient is φ = 60896.

The previous prime is 91331. The next prime is 91367. The reversal of 91347 is 74319.

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

It is a cyclic number.

It is not a de Polignac number, because 91347 - 2⁴ = 91331 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (91367) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15222 + ... + 15227.

It is an arithmetic number, because the mean of its divisors is an integer number (30450).

2⁹¹³⁴⁷ is an apocalyptic number.

91347 is a deficient number, since it is larger than the sum of its proper divisors (30453).

91347 is a wasteful number, since it uses less digits than its factorization.

91347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30452.

The product of its digits is 756, while the sum is 24.

The square root of 91347 is about 302.2366622367. The cubic root of 91347 is about 45.0365135743.

The spelling of 91347 in words is "ninety-one thousand, three hundred forty-seven".