91693 has 4 divisors (see below), whose sum is σ = 104800. Its totient is φ = 78588.

The previous prime is 91691. The next prime is 91703. The reversal of 91693 is 39619.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 91693 - 2¹ = 91691 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91691) 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, 6543 + ... + 6556.

It is an arithmetic number, because the mean of its divisors is an integer number (26200).

2⁹¹⁶⁹³ is an apocalyptic number.

It is an amenable number.

91693 is a deficient number, since it is larger than the sum of its proper divisors (13107).

91693 is a wasteful number, since it uses less digits than its factorization.

91693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13106.

The product of its digits is 1458, while the sum is 28.

The square root of 91693 is about 302.8085203557. The cubic root of 91693 is about 45.0933043486.

It can be divided in two parts, 91 and 693, that added together give a square (784 = 28²).

The spelling of 91693 in words is "ninety-one thousand, six hundred ninety-three".