987233 has 4 divisors (see below), whose sum is σ = 1063188. Its totient is φ = 911280.

The previous prime is 987227. The next prime is 987251. The reversal of 987233 is 332789.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 332789 = 67 ⋅4967.

It can be written as a sum of positive squares in 2 ways, for example, as 508369 + 478864 = 713^2 + 692^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-987233 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 987233.

It is not an unprimeable number, because it can be changed into a prime (987293) 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, 37958 + ... + 37983.

It is an arithmetic number, because the mean of its divisors is an integer number (265797).

2⁹⁸⁷²³³ is an apocalyptic number.

It is an amenable number.

987233 is a deficient number, since it is larger than the sum of its proper divisors (75955).

987233 is a wasteful number, since it uses less digits than its factorization.

987233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75954.

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

The square root of 987233 is about 993.5959943559. The cubic root of 987233 is about 99.5726093076.

The spelling of 987233 in words is "nine hundred eighty-seven thousand, two hundred thirty-three".