662461984 has 36 divisors (see below), whose sum is σ = 1385473194. Its totient is φ = 311742464.

The previous prime is 662461979. The next prime is 662462057. The reversal of 662461984 is 489164266.

662461984 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 608115600 + 54346384 = 24660^2 + 7372^2 .

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 26569 + ... + 45064.

Almost surely, 2^662461984 is an apocalyptic number.

It is an amenable number.

662461984 is an abundant number, since it is smaller than the sum of its proper divisors (723011210).

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

662461984 is a wasteful number, since it uses less digits than its factorization.

662461984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71677 (or 71652 counting only the distinct ones).

The product of its digits is 497664, while the sum is 46.

The square root of 662461984 is about 25738.3368538062. The cubic root of 662461984 is about 871.7400257462.

The spelling of 662461984 in words is "six hundred sixty-two million, four hundred sixty-one thousand, nine hundred eighty-four".