662671272 has 32 divisors (see below), whose sum is σ = 1681408800. Its totient is φ = 217593024.

The previous prime is 662671259. The next prime is 662671291. The reversal of 662671272 is 272176266.

It is a happy number.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 662671272.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 204447 + ... + 207662.

It is an arithmetic number, because the mean of its divisors is an integer number (52544025).

Almost surely, 2^662671272 is an apocalyptic number.

It is an amenable number.

662671272 is an abundant number, since it is smaller than the sum of its proper divisors (1018737528).

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

662671272 is a wasteful number, since it uses less digits than its factorization.

662671272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412185 (or 412181 counting only the distinct ones).

The product of its digits is 84672, while the sum is 39.

The square root of 662671272 is about 25742.4022189072. The cubic root of 662671272 is about 871.8318174371.

The spelling of 662671272 in words is "six hundred sixty-two million, six hundred seventy-one thousand, two hundred seventy-two".