680762057 has 2 divisors, whose sum is σ = 680762058. Its totient is φ = 680762056.

The previous prime is 680762029. The next prime is 680762063. The reversal of 680762057 is 750267086.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 528264256 + 152497801 = 22984^2 + 12349^2 .

It is a cyclic number.

It is not a de Polignac number, because 680762057 - 2²⁰ = 679713481 is a prime.

It is not a weakly prime, because it can be changed into another prime (680762557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 340381028 + 340381029.

It is an arithmetic number, because the mean of its divisors is an integer number (340381029).

Almost surely, 2^680762057 is an apocalyptic number.

It is an amenable number.

680762057 is a deficient number, since it is larger than the sum of its proper divisors (1).

680762057 is an equidigital number, since it uses as much as digits as its factorization.

680762057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 141120, while the sum is 41.

The square root of 680762057 is about 26091.4173053133. The cubic root of 680762057 is about 879.6943054075.

The spelling of 680762057 in words is "six hundred eighty million, seven hundred sixty-two thousand, fifty-seven".