29285 has 4 divisors (see below), whose sum is σ = 35148. Its totient is φ = 23424.

The previous prime is 29269. The next prime is 29287. The reversal of 29285 is 58292.

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

It can be written as a sum of positive squares in 2 ways, for example, as 20449 + 8836 = 143^2 + 94^2 .

It is a cyclic number.

It is not a de Polignac number, because 29285 - 2⁴ = 29269 is a prime.

It is a super-2 number, since 2×29285² = 1715222450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29287) 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, 2924 + ... + 2933.

It is an arithmetic number, because the mean of its divisors is an integer number (8787).

2²⁹²⁸⁵ is an apocalyptic number.

It is an amenable number.

29285 is a deficient number, since it is larger than the sum of its proper divisors (5863).

29285 is an equidigital number, since it uses as much as digits as its factorization.

29285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5862.

The product of its digits is 1440, while the sum is 26.

The square root of 29285 is about 171.1286066092. The cubic root of 29285 is about 30.8234852081.

The spelling of 29285 in words is "twenty-nine thousand, two hundred eighty-five".