662671008 has 108 divisors (see below), whose sum is σ = 1919852298. Its totient is φ = 216817920.

The previous prime is 662670991. The next prime is 662671013. The reversal of 662671008 is 800176266.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 481714704 + 180956304 = 21948^2 + 13452^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1002198 + ... + 1002858.

Almost surely, 2^662671008 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 662671008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (959926149).

662671008 is an abundant number, since it is smaller than the sum of its proper divisors (1257181290).

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

662671008 is a wasteful number, since it uses less digits than its factorization.

662671008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 795 (or 725 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 662671008 is about 25742.3970911801. The cubic root of 662671008 is about 871.8317016614.

The spelling of 662671008 in words is "six hundred sixty-two million, six hundred seventy-one thousand, eight".