235969 has 4 divisors (see below), whose sum is σ = 238896. Its totient is φ = 233044.

The previous prime is 235967. The next prime is 235979. The reversal of 235969 is 969532.

235969 = T₃₀ + T₃₁ + ... + T₁₁₂.

It is a happy number.

235969 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 235969 - 2¹ = 235967 is a prime.

It is a super-2 number, since 2×235969² = 111362737922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (235967) 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, 1339 + ... + 1504.

It is an arithmetic number, because the mean of its divisors is an integer number (59724).

2²³⁵⁹⁶⁹ is an apocalyptic number.

It is an amenable number.

235969 is a deficient number, since it is larger than the sum of its proper divisors (2927).

235969 is an equidigital number, since it uses as much as digits as its factorization.

235969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2926.

The product of its digits is 14580, while the sum is 34.

The square root of 235969 is about 485.7664047667. The cubic root of 235969 is about 61.7947601189.

The spelling of 235969 in words is "two hundred thirty-five thousand, nine hundred sixty-nine".