91797 has 8 divisors (see below), whose sum is σ = 125856. Its totient is φ = 59472.

The previous prime is 91781. The next prime is 91801. The reversal of 91797 is 79719.

91797 = T₈ + T₉ + ... + T₈₁.

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

It is not a de Polignac number, because 91797 - 2⁴ = 91781 is a prime.

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 91797.

It is not an unprimeable number, because it can be changed into a prime (91757) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 303 + ... + 524.

It is an arithmetic number, because the mean of its divisors is an integer number (15732).

2⁹¹⁷⁹⁷ is an apocalyptic number.

It is an amenable number.

91797 is a deficient number, since it is larger than the sum of its proper divisors (34059).

91797 is a wasteful number, since it uses less digits than its factorization.

91797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 867.

The product of its digits is 3969, while the sum is 33.

The square root of 91797 is about 302.9801973727. The cubic root of 91797 is about 45.1103464773.

It can be divided in two parts, 91 and 797, that multiplied together give a palindrome (72527).

The spelling of 91797 in words is "ninety-one thousand, seven hundred ninety-seven".