680135847 has 8 divisors (see below), whose sum is σ = 960191856. Its totient is φ = 426751872.

The previous prime is 680135831. The next prime is 680135879. The reversal of 680135847 is 748531086.

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

It is not a de Polignac number, because 680135847 - 2⁴ = 680135831 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 680135799 and 680135808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680135447) 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, 6667948 + ... + 6668049.

It is an arithmetic number, because the mean of its divisors is an integer number (120023982).

Almost surely, 2^680135847 is an apocalyptic number.

680135847 is a deficient number, since it is larger than the sum of its proper divisors (280056009).

680135847 is a wasteful number, since it uses less digits than its factorization.

680135847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13336017.

The product of its (nonzero) digits is 161280, while the sum is 42.

The square root of 680135847 is about 26079.4142380537. The cubic root of 680135847 is about 879.4244889757.

The spelling of 680135847 in words is "six hundred eighty million, one hundred thirty-five thousand, eight hundred forty-seven".