236506 has 4 divisors (see below), whose sum is σ = 354762. Its totient is φ = 118252.

The previous prime is 236503. The next prime is 236507. The reversal of 236506 is 605632.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 194481 + 42025 = 441^2 + 205^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (236503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59125 + ... + 59128.

2²³⁶⁵⁰⁶ is an apocalyptic number.

236506 is a deficient number, since it is larger than the sum of its proper divisors (118256).

236506 is a wasteful number, since it uses less digits than its factorization.

236506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118255.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 236506 is about 486.3188254633. The cubic root of 236506 is about 61.8416005169.

The spelling of 236506 in words is "two hundred thirty-six thousand, five hundred six".