667710032 has 20 divisors (see below), whose sum is σ = 1411296576. Its totient is φ = 303504480.

The previous prime is 667710031. The next prime is 667710077. The reversal of 667710032 is 230017766.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (667710031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1896728 + ... + 1897079.

Almost surely, 2^667710032 is an apocalyptic number.

It is an amenable number.

667710032 is an abundant number, since it is smaller than the sum of its proper divisors (743586544).

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

667710032 is a wasteful number, since it uses less digits than its factorization.

667710032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3793826 (or 3793820 counting only the distinct ones).

The product of its (nonzero) digits is 10584, while the sum is 32.

The square root of 667710032 is about 25840.0857583716. The cubic root of 667710032 is about 874.0359589818.

Adding to 667710032 its reverse (230017766), we get a palindrome (897727798).

The spelling of 667710032 in words is "six hundred sixty-seven million, seven hundred ten thousand, thirty-two".