680676349 has 8 divisors (see below), whose sum is σ = 719231040. Its totient is φ = 642394656.

The previous prime is 680676341. The next prime is 680676377. The reversal of 680676349 is 943676086.

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 680676349 - 2³ = 680676341 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 (680676341) 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, 63112 + ... + 73105.

It is an arithmetic number, because the mean of its divisors is an integer number (89903880).

Almost surely, 2^680676349 is an apocalyptic number.

It is an amenable number.

680676349 is a deficient number, since it is larger than the sum of its proper divisors (38554691).

680676349 is a wasteful number, since it uses less digits than its factorization.

680676349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136499.

The product of its (nonzero) digits is 1306368, while the sum is 49.

The square root of 680676349 is about 26089.7747978015. The cubic root of 680676349 is about 879.6573859958.

The spelling of 680676349 in words is "six hundred eighty million, six hundred seventy-six thousand, three hundred forty-nine".