235669 has 8 divisors (see below), whose sum is σ = 272448. Its totient is φ = 199680.

The previous prime is 235663. The next prime is 235673. The reversal of 235669 is 966532.

235669 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 235669 - 2³ = 235661 is a prime.

It is a super-2 number, since 2×235669² = 111079755122, which contains 22 as substring.

It is a Duffinian number.

235669 is a lucky number.

It is a plaindrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 235669.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (235661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 789 + ... + 1045.

It is an arithmetic number, because the mean of its divisors is an integer number (34056).

2²³⁵⁶⁶⁹ is an apocalyptic number.

It is an amenable number.

235669 is a deficient number, since it is larger than the sum of its proper divisors (36779).

235669 is a wasteful number, since it uses less digits than its factorization.

235669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395.

The product of its digits is 9720, while the sum is 31.

The square root of 235669 is about 485.4575161639. The cubic root of 235669 is about 61.7685613529.

The spelling of 235669 in words is "two hundred thirty-five thousand, six hundred sixty-nine".