233690 has 8 divisors (see below), whose sum is σ = 420660. Its totient is φ = 93472.

The previous prime is 233689. The next prime is 233693. The reversal of 233690 is 96332.

It is a happy number.

233690 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 214369 + 19321 = 463^2 + 139^2 .

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

It is a super-2 number, since 2×233690² = 109222032200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (233693) 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, 11675 + ... + 11694.

2²³³⁶⁹⁰ is an apocalyptic number.

233690 is a deficient number, since it is larger than the sum of its proper divisors (186970).

233690 is a wasteful number, since it uses less digits than its factorization.

233690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23376.

The product of its (nonzero) digits is 972, while the sum is 23.

The square root of 233690 is about 483.4149356402. The cubic root of 233690 is about 61.5951772803.

The spelling of 233690 in words is "two hundred thirty-three thousand, six hundred ninety".