680087113 has 2 divisors, whose sum is σ = 680087114. Its totient is φ = 680087112.

The previous prime is 680087101. The next prime is 680087129. The reversal of 680087113 is 311780086.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 536015104 + 144072009 = 23152^2 + 12003^2 .

It is a cyclic number.

It is not a de Polignac number, because 680087113 - 2¹⁷ = 679956041 is a prime.

It is not a weakly prime, because it can be changed into another prime (680087813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 340043556 + 340043557.

It is an arithmetic number, because the mean of its divisors is an integer number (340043557).

Almost surely, 2^680087113 is an apocalyptic number.

It is an amenable number.

680087113 is a deficient number, since it is larger than the sum of its proper divisors (1).

680087113 is an equidigital number, since it uses as much as digits as its factorization.

680087113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 680087113 is about 26078.4798828459. The cubic root of 680087113 is about 879.4034839089.

The spelling of 680087113 in words is "six hundred eighty million, eighty-seven thousand, one hundred thirteen".