662997 has 8 divisors (see below), whose sum is σ = 912640. Its totient is φ = 427680.

The previous prime is 662957. The next prime is 662999. The reversal of 662997 is 799266.

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

It is not a de Polignac number, because 662997 - 2¹¹ = 660949 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 (662999) 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 7 ways as a sum of consecutive naturals, for example, 3472 + ... + 3657.

It is an arithmetic number, because the mean of its divisors is an integer number (114080).

2⁶⁶²⁹⁹⁷ is an apocalyptic number.

It is an amenable number.

662997 is a deficient number, since it is larger than the sum of its proper divisors (249643).

662997 is a wasteful number, since it uses less digits than its factorization.

662997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7163.

The product of its digits is 40824, while the sum is 39.

The square root of 662997 is about 814.2462772405. The cubic root of 662997 is about 87.1974640146.

The spelling of 662997 in words is "six hundred sixty-two thousand, nine hundred ninety-seven".