688350117 has 16 divisors (see below), whose sum is σ = 1129600640. Its totient is φ = 363085632.

The previous prime is 688350097. The next prime is 688350127. The reversal of 688350117 is 711053886.

It is not a de Polignac number, because 688350117 - 2⁶ = 688350053 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (688350127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1260442 + ... + 1260987.

It is an arithmetic number, because the mean of its divisors is an integer number (70600040).

Almost surely, 2^688350117 is an apocalyptic number.

It is an amenable number.

688350117 is a deficient number, since it is larger than the sum of its proper divisors (441250523).

688350117 is a wasteful number, since it uses less digits than its factorization.

688350117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2521452.

The product of its (nonzero) digits is 40320, while the sum is 39.

The square root of 688350117 is about 26236.4272910776. The cubic root of 688350117 is about 882.9507169167.

The spelling of 688350117 in words is "six hundred eighty-eight million, three hundred fifty thousand, one hundred seventeen".