688006012 has 12 divisors (see below), whose sum is σ = 1209718216. Its totient is φ = 342372240.

The previous prime is 688006001. The next prime is 688006013. The reversal of 688006012 is 210600886.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (688006013) 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, 406743 + ... + 408430.

Almost surely, 2^688006012 is an apocalyptic number.

It is an amenable number.

688006012 is a deficient number, since it is larger than the sum of its proper divisors (521712204).

688006012 is a wasteful number, since it uses less digits than its factorization.

688006012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 815388 (or 815386 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 688006012 is about 26229.8686996332. The cubic root of 688006012 is about 882.8035638954.

Adding to 688006012 its reverse (210600886), we get a palindrome (898606898).

The spelling of 688006012 in words is "six hundred eighty-eight million, six thousand, twelve".