29091 has 4 divisors (see below), whose sum is σ = 38792. Its totient is φ = 19392.

The previous prime is 29077. The next prime is 29101. The reversal of 29091 is 19092.

It is a happy number.

29091 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 29091 - 2⁵ = 29059 is a prime.

It is a D-number.

It is a Duffinian number.

29091 is a lucky number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 29091.

It is not an unprimeable number, because it can be changed into a prime (29021) 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, 4846 + ... + 4851.

It is an arithmetic number, because the mean of its divisors is an integer number (9698).

2²⁹⁰⁹¹ is an apocalyptic number.

29091 is a deficient number, since it is larger than the sum of its proper divisors (9701).

29091 is an equidigital number, since it uses as much as digits as its factorization.

29091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9700.

The product of its (nonzero) digits is 162, while the sum is 21.

The square root of 29091 is about 170.5608395852. The cubic root of 29091 is about 30.7552704298.

Subtracting from 29091 its reverse (19092), we obtain a palindrome (9999).

The spelling of 29091 in words is "twenty-nine thousand, ninety-one".