235688 has 16 divisors (see below), whose sum is σ = 468180. Its totient is φ = 110848.

The previous prime is 235679. The next prime is 235699. The reversal of 235688 is 886532.

It can be written as a sum of positive squares in 2 ways, for example, as 232324 + 3364 = 482^2 + 58^2 .

It is a plaindrome in base 10.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 235688.

It is an unprimeable number.

235688 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 731 + ... + 1002.

2²³⁵⁶⁸⁸ is an apocalyptic number.

It is an amenable number.

235688 is a deficient number, since it is larger than the sum of its proper divisors (232492).

235688 is a wasteful number, since it uses less digits than its factorization.

It is an anagram of its base 9 representation: 235688 = (388265)₉.

235688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1756 (or 1752 counting only the distinct ones).

The product of its digits is 11520, while the sum is 32.

The square root of 235688 is about 485.4770849381. The cubic root of 235688 is about 61.7702212673.

The spelling of 235688 in words is "two hundred thirty-five thousand, six hundred eighty-eight".