236993 has 2 divisors, whose sum is σ = 236994. Its totient is φ = 236992.

The previous prime is 236983. The next prime is 237011. The reversal of 236993 is 399632.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 142129 + 94864 = 377^2 + 308^2 .

It is a cyclic number.

It is not a de Polignac number, because 236993 - 2⁸ = 236737 is a prime.

It is a Sophie Germain prime.

It is an Ulam number.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (236983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 118496 + 118497.

It is an arithmetic number, because the mean of its divisors is an integer number (118497).

2²³⁶⁹⁹³ is an apocalyptic number.

It is an amenable number.

236993 is a deficient number, since it is larger than the sum of its proper divisors (1).

236993 is an equidigital number, since it uses as much as digits as its factorization.

236993 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8748, while the sum is 32.

The square root of 236993 is about 486.8192683122. The cubic root of 236993 is about 61.8840183434.

The spelling of 236993 in words is "two hundred thirty-six thousand, nine hundred ninety-three".