29381 has 4 divisors (see below), whose sum is σ = 32064. Its totient is φ = 26700.

The previous prime is 29363. The next prime is 29383. The reversal of 29381 is 18392.

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 a de Polignac number, because none of the positive numbers 2^k-29381 is a prime.

It is a super-2 number, since 2×29381² = 1726486322, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a Curzon 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 29381.

It is not an unprimeable number, because it can be changed into a prime (29383) 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, 1325 + ... + 1346.

It is an arithmetic number, because the mean of its divisors is an integer number (8016).

2²⁹³⁸¹ is an apocalyptic number.

It is an amenable number.

29381 is a deficient number, since it is larger than the sum of its proper divisors (2683).

29381 is a wasteful number, since it uses less digits than its factorization.

29381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2682.

The product of its digits is 432, while the sum is 23.

The square root of 29381 is about 171.4088679153. The cubic root of 29381 is about 30.8571295888.

The spelling of 29381 in words is "twenty-nine thousand, three hundred eighty-one".