688671201 has 8 divisors (see below), whose sum is σ = 918358560. Its totient is φ = 459048992.

The previous prime is 688671197. The next prime is 688671211. The reversal of 688671201 is 102176886.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 688671201 - 2² = 688671197 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 688671201.

It is not an unprimeable number, because it can be changed into a prime (688671211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19810 + ... + 42068.

It is an arithmetic number, because the mean of its divisors is an integer number (114794820).

Almost surely, 2^688671201 is an apocalyptic number.

It is an amenable number.

688671201 is a deficient number, since it is larger than the sum of its proper divisors (229687359).

688671201 is a wasteful number, since it uses less digits than its factorization.

688671201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32575.

The product of its (nonzero) digits is 32256, while the sum is 39.

The square root of 688671201 is about 26242.5456272824. The cubic root of 688671201 is about 883.0879810174.

It can be divided in two parts, 6886 and 71201, that added together give a palindrome (78087).

The spelling of 688671201 in words is "six hundred eighty-eight million, six hundred seventy-one thousand, two hundred one".