680377 has 2 divisors, whose sum is σ = 680378. Its totient is φ = 680376.

The previous prime is 680353. The next prime is 680387. The reversal of 680377 is 773086.

680377 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 467856 + 212521 = 684^2 + 461^2 .

It is a cyclic number.

It is not a de Polignac number, because 680377 - 2⁷ = 680249 is a prime.

It is not a weakly prime, because it can be changed into another prime (680327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 340188 + 340189.

It is an arithmetic number, because the mean of its divisors is an integer number (340189).

2⁶⁸⁰³⁷⁷ is an apocalyptic number.

It is an amenable number.

680377 is a deficient number, since it is larger than the sum of its proper divisors (1).

680377 is an equidigital number, since it uses as much as digits as its factorization.

680377 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7056, while the sum is 31.

The square root of 680377 is about 824.8496832757. The cubic root of 680377 is about 87.9528414682.

The spelling of 680377 in words is "six hundred eighty thousand, three hundred seventy-seven".