235997 has 2 divisors, whose sum is σ = 235998. Its totient is φ = 235996.

The previous prime is 235979. The next prime is 236017. The reversal of 235997 is 799532.

Together with previous prime (235979) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 119716 + 116281 = 346^2 + 341^2 .

It is a cyclic number.

It is not a de Polignac number, because 235997 - 2¹² = 231901 is a prime.

It is a Chen prime.

It is a d-powerful number, because it can be written as 2 + 3⁵ + 9⁵ + 5 + 9⁵ + 7⁶ .

It is a plaindrome in base 16.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 235997.

It is not a weakly prime, because it can be changed into another prime (235927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117998 + 117999.

It is an arithmetic number, because the mean of its divisors is an integer number (117999).

2²³⁵⁹⁹⁷ is an apocalyptic number.

It is an amenable number.

235997 is a deficient number, since it is larger than the sum of its proper divisors (1).

235997 is an equidigital number, since it uses as much as digits as its factorization.

235997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17010, while the sum is 35.

The square root of 235997 is about 485.7952243487. The cubic root of 235997 is about 61.7972042039.

The spelling of 235997 in words is "two hundred thirty-five thousand, nine hundred ninety-seven".