80776441 has 2 divisors, whose sum is σ = 80776442. Its totient is φ = 80776440.

The previous prime is 80776427. The next prime is 80776453. The reversal of 80776441 is 14467708.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 44836416 + 35940025 = 6696^2 + 5995^2 .

It is a cyclic number.

It is not a de Polignac number, because 80776441 - 2⁷ = 80776313 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 80776441.

It is not a weakly prime, because it can be changed into another prime (80776481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40388220 + 40388221.

It is an arithmetic number, because the mean of its divisors is an integer number (40388221).

Almost surely, 2^80776441 is an apocalyptic number.

It is an amenable number.

80776441 is a deficient number, since it is larger than the sum of its proper divisors (1).

80776441 is an equidigital number, since it uses as much as digits as its factorization.

80776441 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 37632, while the sum is 37.

The square root of 80776441 is about 8987.5714739856. The cubic root of 80776441 is about 432.2764452161.

The spelling of 80776441 in words is "eighty million, seven hundred seventy-six thousand, four hundred forty-one".