91713 has 8 divisors (see below), whose sum is σ = 128800. Its totient is φ = 57888.

The previous prime is 91711. The next prime is 91733. The reversal of 91713 is 31719.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 91713 - 2¹ = 91711 is a prime.

It is a super-2 number, since 2×91713² = 16822548738, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 91713.

It is not an unprimeable number, because it can be changed into a prime (91711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 748 + ... + 861.

It is an arithmetic number, because the mean of its divisors is an integer number (16100).

2⁹¹⁷¹³ is an apocalyptic number.

It is an amenable number.

91713 is a deficient number, since it is larger than the sum of its proper divisors (37087).

91713 is a wasteful number, since it uses less digits than its factorization.

91713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1631.

The product of its digits is 189, while the sum is 21.

The square root of 91713 is about 302.8415427249. The cubic root of 91713 is about 45.0965826815.

The spelling of 91713 in words is "ninety-one thousand, seven hundred thirteen".