680254433 has 2 divisors, whose sum is σ = 680254434. Its totient is φ = 680254432.

The previous prime is 680254423. The next prime is 680254469. The reversal of 680254433 is 334452086.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 587189824 + 93064609 = 24232^2 + 9647^2 .

It is a cyclic number.

It is not a de Polignac number, because 680254433 - 2⁸ = 680254177 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 680254393 and 680254402.

It is not a weakly prime, because it can be changed into another prime (680254403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 340127216 + 340127217.

It is an arithmetic number, because the mean of its divisors is an integer number (340127217).

Almost surely, 2^680254433 is an apocalyptic number.

It is an amenable number.

680254433 is a deficient number, since it is larger than the sum of its proper divisors (1).

680254433 is an equidigital number, since it uses as much as digits as its factorization.

680254433 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69120, while the sum is 35.

The square root of 680254433 is about 26081.6876946259. The cubic root of 680254433 is about 879.4755970852.

The spelling of 680254433 in words is "six hundred eighty million, two hundred fifty-four thousand, four hundred thirty-three".