32291 has 6 divisors (see below), whose sum is σ = 37620. Its totient is φ = 27636.

The previous prime is 32261. The next prime is 32297. The reversal of 32291 is 19223.

It is not a de Polignac number, because 32291 - 2¹⁰ = 31267 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 14.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 32291.

It is not an unprimeable number, because it can be changed into a prime (32297) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 281 + ... + 378.

It is an arithmetic number, because the mean of its divisors is an integer number (6270).

2³²²⁹¹ is an apocalyptic number.

32291 is a deficient number, since it is larger than the sum of its proper divisors (5329).

32291 is an equidigital number, since it uses as much as digits as its factorization.

32291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 673 (or 666 counting only the distinct ones).

The product of its digits is 108, while the sum is 17.

The square root of 32291 is about 179.6969671419. The cubic root of 32291 is about 31.8439669771.

It can be divided in two parts, 32 and 291, that added together give a palindrome (323).

The spelling of 32291 in words is "thirty-two thousand, two hundred ninety-one".