29391 has 8 divisors (see below), whose sum is σ = 39984. Its totient is φ = 19200.

The previous prime is 29389. The next prime is 29399. The reversal of 29391 is 19392.

It is a happy number.

29391 is nontrivially palindromic in base 8.

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

It is not a de Polignac number, because 29391 - 2¹ = 29389 is a prime.

29391 is a lucky number.

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 29391.

It is not an unprimeable number, because it can be changed into a prime (29399) 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, 241 + ... + 341.

It is an arithmetic number, because the mean of its divisors is an integer number (4998).

2²⁹³⁹¹ is an apocalyptic number.

29391 is a deficient number, since it is larger than the sum of its proper divisors (10593).

29391 is a wasteful number, since it uses less digits than its factorization.

29391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201.

The product of its digits is 486, while the sum is 24.

The square root of 29391 is about 171.4380354530. The cubic root of 29391 is about 30.8606299949.

Subtracting from 29391 its reverse (19392), we obtain a palindrome (9999).

The spelling of 29391 in words is "twenty-nine thousand, three hundred ninety-one".