688716383 has 8 divisors (see below), whose sum is σ = 708576048. Its totient is φ = 669138624.

The previous prime is 688716373. The next prime is 688716407. The reversal of 688716383 is 383617886.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-688716383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (688716323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65516 + ... + 75297.

It is an arithmetic number, because the mean of its divisors is an integer number (88572006).

Almost surely, 2^688716383 is an apocalyptic number.

688716383 is a deficient number, since it is larger than the sum of its proper divisors (19859665).

688716383 is a wasteful number, since it uses less digits than its factorization.

688716383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140953.

The product of its digits is 1161216, while the sum is 50.

The square root of 688716383 is about 26243.4064671490. The cubic root of 688716383 is about 883.1072929950.

The spelling of 688716383 in words is "six hundred eighty-eight million, seven hundred sixteen thousand, three hundred eighty-three".