680491003 has 8 divisors (see below), whose sum is σ = 710538480. Its totient is φ = 650882400.

The previous prime is 680490997. The next prime is 680491043. The reversal of 680491003 is 300194086.

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 680491003 - 2¹⁷ = 680359931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (680491043) 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, 106548 + ... + 112753.

It is an arithmetic number, because the mean of its divisors is an integer number (88817310).

Almost surely, 2^680491003 is an apocalyptic number.

680491003 is a deficient number, since it is larger than the sum of its proper divisors (30047477).

680491003 is a wasteful number, since it uses less digits than its factorization.

680491003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219437.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 680491003 is about 26086.2224747088. Note that the first 3 decimals coincide. The cubic root of 680491003 is about 879.5775361137.

The spelling of 680491003 in words is "six hundred eighty million, four hundred ninety-one thousand, three".