80827361 has 2 divisors, whose sum is σ = 80827362. Its totient is φ = 80827360.

The previous prime is 80827319. The next prime is 80827391. The reversal of 80827361 is 16372808.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 80442961 + 384400 = 8969^2 + 620^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80827361 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (80827301) 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, 40413680 + 40413681.

It is an arithmetic number, because the mean of its divisors is an integer number (40413681).

Almost surely, 2^80827361 is an apocalyptic number.

It is an amenable number.

80827361 is a deficient number, since it is larger than the sum of its proper divisors (1).

80827361 is an equidigital number, since it uses as much as digits as its factorization.

80827361 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 80827361 is about 8990.4038285274. The cubic root of 80827361 is about 432.3672592072.

The spelling of 80827361 in words is "eighty million, eight hundred twenty-seven thousand, three hundred sixty-one".