688342793 has 8 divisors (see below), whose sum is σ = 704477760. Its totient is φ = 672356880.

The previous prime is 688342763. The next prime is 688342829. The reversal of 688342793 is 397243886.

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 688342793 - 2²⁸ = 419907337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (688342723) 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, 27893 + ... + 46418.

It is an arithmetic number, because the mean of its divisors is an integer number (88059720).

Almost surely, 2^688342793 is an apocalyptic number.

It is an amenable number.

688342793 is a deficient number, since it is larger than the sum of its proper divisors (16134967).

688342793 is a wasteful number, since it uses less digits than its factorization.

688342793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74527.

The product of its digits is 1741824, while the sum is 50.

The square root of 688342793 is about 26236.2877137754. The cubic root of 688342793 is about 882.9475853931.

The spelling of 688342793 in words is "six hundred eighty-eight million, three hundred forty-two thousand, seven hundred ninety-three".