662872 has 48 divisors (see below), whose sum is σ = 1539000. Its totient is φ = 266112.

The previous prime is 662867. The next prime is 662897. The reversal of 662872 is 278266.

It is a happy number.

Its product of digits (8064) is a multiple of the sum of its prime factors (128).

It is a congruent number.

It is an unprimeable number.

662872 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 11 ways as a sum of consecutive naturals, for example, 7404 + ... + 7492.

2⁶⁶²⁸⁷² is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 662872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (769500).

662872 is an abundant number, since it is smaller than the sum of its proper divisors (876128).

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

662872 is a wasteful number, since it uses less digits than its factorization.

662872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128 (or 117 counting only the distinct ones).

The product of its digits is 8064, while the sum is 31.

The square root of 662872 is about 814.1695155187. The cubic root of 662872 is about 87.1919836639.

The spelling of 662872 in words is "six hundred sixty-two thousand, eight hundred seventy-two".