233987 has 8 divisors (see below), whose sum is σ = 258720. Its totient is φ = 210240.

The previous prime is 233983. The next prime is 233993. The reversal of 233987 is 789332.

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

It is a cyclic number.

It is not a de Polignac number, because 233987 - 2² = 233983 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 233987.

It is not an unprimeable number, because it can be changed into a prime (233983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 314 + ... + 752.

It is an arithmetic number, because the mean of its divisors is an integer number (32340).

2²³³⁹⁸⁷ is an apocalyptic number.

233987 is a deficient number, since it is larger than the sum of its proper divisors (24733).

233987 is a wasteful number, since it uses less digits than its factorization.

233987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 493.

The product of its digits is 9072, while the sum is 32.

The square root of 233987 is about 483.7220276150. The cubic root of 233987 is about 61.6212603008.

The spelling of 233987 in words is "two hundred thirty-three thousand, nine hundred eighty-seven".