662289 has 8 divisors (see below), whose sum is σ = 887520. Its totient is φ = 439296.

The previous prime is 662287. The next prime is 662309. The reversal of 662289 is 982266.

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

It is not a de Polignac number, because 662289 - 2¹ = 662287 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (662281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 342 + ... + 1200.

It is an arithmetic number, because the mean of its divisors is an integer number (110940).

2⁶⁶²²⁸⁹ is an apocalyptic number.

It is an amenable number.

662289 is a deficient number, since it is larger than the sum of its proper divisors (225231).

662289 is a wasteful number, since it uses less digits than its factorization.

662289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1119.

The product of its digits is 10368, while the sum is 33.

The square root of 662289 is about 813.8114032133. The cubic root of 662289 is about 87.1664142044.

The spelling of 662289 in words is "six hundred sixty-two thousand, two hundred eighty-nine".