680548647 has 8 divisors (see below), whose sum is σ = 908067456. Its totient is φ = 453364472.

The previous prime is 680548643. The next prime is 680548651. The reversal of 680548647 is 746845086.

It is an interprime number because it is at equal distance from previous prime (680548643) and next prime (680548651).

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 680548647 - 2² = 680548643 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 680548596 and 680548605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680548643) 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, 78873 + ... + 87074.

It is an arithmetic number, because the mean of its divisors is an integer number (113508432).

Almost surely, 2^680548647 is an apocalyptic number.

680548647 is a deficient number, since it is larger than the sum of its proper divisors (227518809).

680548647 is a wasteful number, since it uses less digits than its factorization.

680548647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167317.

The product of its (nonzero) digits is 1290240, while the sum is 48.

The square root of 680548647 is about 26087.3273257342. The cubic root of 680548647 is about 879.6023715809.

The spelling of 680548647 in words is "six hundred eighty million, five hundred forty-eight thousand, six hundred forty-seven".