662389 has 16 divisors (see below), whose sum is σ = 846720. Its totient is φ = 504000.

The previous prime is 662369. The next prime is 662401. The reversal of 662389 is 983266.

It is a happy number.

It is not a de Polignac number, because 662389 - 2⁵ = 662357 is a prime.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (662309) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 2514 + ... + 2764.

It is an arithmetic number, because the mean of its divisors is an integer number (52920).

2⁶⁶²³⁸⁹ is an apocalyptic number.

It is an amenable number.

662389 is a deficient number, since it is larger than the sum of its proper divisors (184331).

662389 is a wasteful number, since it uses less digits than its factorization.

662389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300.

The product of its digits is 15552, while the sum is 34.

The square root of 662389 is about 813.8728401907. The cubic root of 662389 is about 87.1708011124.

The spelling of 662389 in words is "six hundred sixty-two thousand, three hundred eighty-nine".