662611 has 4 divisors (see below), whose sum is σ = 668800. Its totient is φ = 656424.

The previous prime is 662591. The next prime is 662617. The reversal of 662611 is 116266.

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

It is a cyclic number.

It is not a de Polignac number, because 662611 - 2⁷ = 662483 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (662617) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2931 + ... + 3148.

It is an arithmetic number, because the mean of its divisors is an integer number (167200).

2⁶⁶²⁶¹¹ is an apocalyptic number.

662611 is a deficient number, since it is larger than the sum of its proper divisors (6189).

662611 is a wasteful number, since it uses less digits than its factorization.

662611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6188.

The product of its digits is 432, while the sum is 22.

The square root of 662611 is about 814.0092137071. The cubic root of 662611 is about 87.1805384703.

Adding to 662611 its reverse (116266), we get a palindrome (778877).

The spelling of 662611 in words is "six hundred sixty-two thousand, six hundred eleven".