235829 has 6 divisors (see below), whose sum is σ = 259350. Its totient is φ = 214280.

The previous prime is 235813. The next prime is 235849. The reversal of 235829 is 928532.

It can be written as a sum of positive squares in only one way, i.e., 223729 + 12100 = 473^2 + 110^2 .

It is not a de Polignac number, because 235829 - 2⁴ = 235813 is a prime.

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 235829.

It is not an unprimeable number, because it can be changed into a prime (235849) 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, 854 + ... + 1095.

It is an arithmetic number, because the mean of its divisors is an integer number (43225).

2²³⁵⁸²⁹ is an apocalyptic number.

It is an amenable number.

235829 is a deficient number, since it is larger than the sum of its proper divisors (23521).

235829 is a wasteful number, since it uses less digits than its factorization.

235829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1971 (or 1960 counting only the distinct ones).

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

The square root of 235829 is about 485.6222812022. The cubic root of 235829 is about 61.7825367931.

The spelling of 235829 in words is "two hundred thirty-five thousand, eight hundred twenty-nine".