662 has 4 divisors (see below), whose sum is σ = 996. Its totient is φ = 330.

The previous prime is 661. The next prime is 673. The reversal of 662 is 266.

662 is nontrivially palindromic in base 15.

662 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

662 is an undulating number in base 15.

It is a plaindrome in base 8 and base 13.

It is a nialpdrome in base 10 and base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164 + ... + 167.

It is an arithmetic number, because the mean of its divisors is an integer number (249).

2⁶⁶² is an apocalyptic number.

662 is a deficient number, since it is larger than the sum of its proper divisors (334).

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

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

The sum of its prime factors is 333.

The product of its digits is 72, while the sum is 14.

The square root of 662 is about 25.7293606605. The cubic root of 662 is about 8.7153733558.

Adding to 662 its sum of digits (14), we get a palindrome (676).

The spelling of 662 in words is "six hundred sixty-two", and thus it is an aban number.