80680277 has 2 divisors, whose sum is σ = 80680278. Its totient is φ = 80680276.

The previous prime is 80680241. The next prime is 80680307. The reversal of 80680277 is 77208608.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 72148036 + 8532241 = 8494^2 + 2921^2 .

It is a cyclic number.

It is not a de Polignac number, because 80680277 - 2¹⁰ = 80679253 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 80680277.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80680177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40340138 + 40340139.

It is an arithmetic number, because the mean of its divisors is an integer number (40340139).

Almost surely, 2^80680277 is an apocalyptic number.

It is an amenable number.

80680277 is a deficient number, since it is larger than the sum of its proper divisors (1).

80680277 is an equidigital number, since it uses as much as digits as its factorization.

80680277 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 37632, while the sum is 38.

The square root of 80680277 is about 8982.2200485181. The cubic root of 80680277 is about 432.1048360251.

The spelling of 80680277 in words is "eighty million, six hundred eighty thousand, two hundred seventy-seven".