680103428 has 12 divisors (see below), whose sum is σ = 1260191772. Its totient is φ = 320048640.

The previous prime is 680103427. The next prime is 680103493. The reversal of 680103428 is 824301086.

It can be written as a sum of positive squares in 2 ways, for example, as 286557184 + 393546244 = 16928^2 + 19838^2 .

It is a junction number, because it is equal to n+sod(n) for n = 680103394 and 680103403.

It is not an unprimeable number, because it can be changed into a prime (680103427) 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, 5000693 + ... + 5000828.

It is an arithmetic number, because the mean of its divisors is an integer number (105015981).

Almost surely, 2^680103428 is an apocalyptic number.

680103428 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

680103428 is a deficient number, since it is larger than the sum of its proper divisors (580088344).

680103428 is a wasteful number, since it uses less digits than its factorization.

680103428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10001542 (or 10001540 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 680103428 is about 26078.7926867790. The cubic root of 680103428 is about 879.4105160243.

The spelling of 680103428 in words is "six hundred eighty million, one hundred three thousand, four hundred twenty-eight".