29439 has 6 divisors (see below), whose sum is σ = 42536. Its totient is φ = 19620.

The previous prime is 29437. The next prime is 29443. The reversal of 29439 is 93492.

It is not a de Polignac number, because 29439 - 2¹ = 29437 is a prime.

It is a Duffinian 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 29439.

It is not an unprimeable number, because it can be changed into a prime (29437) 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, 1627 + ... + 1644.

2²⁹⁴³⁹ is an apocalyptic number.

29439 is a deficient number, since it is larger than the sum of its proper divisors (13097).

29439 is a wasteful number, since it uses less digits than its factorization.

29439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3277 (or 3274 counting only the distinct ones).

The product of its digits is 1944, while the sum is 27.

The square root of 29439 is about 171.5779706139. The cubic root of 29439 is about 30.8774209011.

Subtracting from 29439 its product of digits (1944), we obtain a triangular number (27495 = T₂₃₄).

It can be divided in two parts, 294 and 39, that added together give a palindrome (333).

The spelling of 29439 in words is "twenty-nine thousand, four hundred thirty-nine".