680633 has 2 divisors, whose sum is σ = 680634. Its totient is φ = 680632.

The previous prime is 680623. The next prime is 680651. The reversal of 680633 is 336086.

680633 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 573049 + 107584 = 757^2 + 328^2 .

It is a cyclic number.

It is not a de Polignac number, because 680633 - 2⁶ = 680569 is a prime.

It is a super-2 number, since 2×680633² = 926522561378, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (680623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 340316 + 340317.

It is an arithmetic number, because the mean of its divisors is an integer number (340317).

2⁶⁸⁰⁶³³ is an apocalyptic number.

It is an amenable number.

680633 is a deficient number, since it is larger than the sum of its proper divisors (1).

680633 is an equidigital number, since it uses as much as digits as its factorization.

680633 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 680633 is about 825.0048484706. The cubic root of 680633 is about 87.9638711885.

The spelling of 680633 in words is "six hundred eighty thousand, six hundred thirty-three".