253829 has 4 divisors (see below), whose sum is σ = 259776. Its totient is φ = 247884.

The previous prime is 253823. The next prime is 253853. The reversal of 253829 is 928352.

253829 is nontrivially palindromic in base 7.

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 not a de Polignac number, because 253829 - 2⁸ = 253573 is a prime.

It is a super-2 number, since 2×253829² = 128858322482, which contains 22 as substring.

It is a pancake number, because a pancake can be divided into 253829 parts by 712 straight cuts.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253823) 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, 2909 + ... + 2994.

It is an arithmetic number, because the mean of its divisors is an integer number (64944).

2²⁵³⁸²⁹ is an apocalyptic number.

It is an amenable number.

253829 is a deficient number, since it is larger than the sum of its proper divisors (5947).

253829 is an equidigital number, since it uses as much as digits as its factorization.

253829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5946.

The product of its digits is 4320, while the sum is 29.

The square root of 253829 is about 503.8144499714. The cubic root of 253829 is about 63.3160402155.

The spelling of 253829 in words is "two hundred fifty-three thousand, eight hundred twenty-nine".