662980 has 12 divisors (see below), whose sum is σ = 1392300. Its totient is φ = 265184.

The previous prime is 662957. The next prime is 662999. The reversal of 662980 is 89266.

It can be written as a sum of positive squares in 2 ways, for example, as 515524 + 147456 = 718^2 + 384^2 .

It is an unprimeable number.

662980 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16555 + ... + 16594.

It is an arithmetic number, because the mean of its divisors is an integer number (116025).

2⁶⁶²⁹⁸⁰ is an apocalyptic number.

It is an amenable number.

662980 is an abundant number, since it is smaller than the sum of its proper divisors (729320).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

662980 is a wasteful number, since it uses less digits than its factorization.

662980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33158 (or 33156 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 662980 is about 814.2358380715. The cubic root of 662980 is about 87.1967187274.

The spelling of 662980 in words is "six hundred sixty-two thousand, nine hundred eighty".