662730 has 16 divisors (see below), whose sum is σ = 1590624. Its totient is φ = 176720.

The previous prime is 662719. The next prime is 662743. The reversal of 662730 is 37266.

It is a super-2 number, since 2×662730² = 878422105800, which contains 22 as substring.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 662730.

It is a congruent number.

It is an unprimeable number.

662730 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 7 ways as a sum of consecutive naturals, for example, 11016 + ... + 11075.

It is an arithmetic number, because the mean of its divisors is an integer number (99414).

2⁶⁶²⁷³⁰ is an apocalyptic number.

662730 is an abundant number, since it is smaller than the sum of its proper divisors (927894).

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

662730 is a wasteful number, since it uses less digits than its factorization.

662730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22101.

The product of its (nonzero) digits is 1512, while the sum is 24.

The square root of 662730 is about 814.0823054213. The cubic root of 662730 is about 87.1857571497.

Adding to 662730 its reverse (37266), we get a palindrome (699996).

The spelling of 662730 in words is "six hundred sixty-two thousand, seven hundred thirty".