288634 has 8 divisors (see below), whose sum is σ = 435348. Its totient is φ = 143520.

The previous prime is 288583. The next prime is 288647. The reversal of 288634 is 436882.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 265225 + 23409 = 515^2 + 153^2 .

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

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 288596 and 288605.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 294 + ... + 814.

2²⁸⁸⁶³⁴ is an apocalyptic number.

288634 is a deficient number, since it is larger than the sum of its proper divisors (146714).

288634 is a wasteful number, since it uses less digits than its factorization.

288634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 800.

The product of its digits is 9216, while the sum is 31.

The square root of 288634 is about 537.2466844942. The cubic root of 288634 is about 66.0869683021.

The spelling of 288634 in words is "two hundred eighty-eight thousand, six hundred thirty-four".