680047 has 4 divisors (see below), whose sum is σ = 702016. Its totient is φ = 658080.

The previous prime is 680039. The next prime is 680059. The reversal of 680047 is 740086.

680047 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 680047 - 2³ = 680039 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 (680027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10938 + ... + 10999.

It is an arithmetic number, because the mean of its divisors is an integer number (175504).

2⁶⁸⁰⁰⁴⁷ is an apocalyptic number.

680047 is a deficient number, since it is larger than the sum of its proper divisors (21969).

680047 is a wasteful number, since it uses less digits than its factorization.

680047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21968.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 680047 is about 824.6496225671. The cubic root of 680047 is about 87.9386193866.

It can be divided in two parts, 6800 and 47, that multiplied together give a triangular number (319600 = T₇₉₉).

The spelling of 680047 in words is "six hundred eighty thousand, forty-seven".