80544917 has 2 divisors, whose sum is σ = 80544918. Its totient is φ = 80544916.

The previous prime is 80544901. The next prime is 80544941. The reversal of 80544917 is 71944508.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49084036 + 31460881 = 7006^2 + 5609^2 .

It is a cyclic number.

It is not a de Polignac number, because 80544917 - 2⁴ = 80544901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80544017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40272458 + 40272459.

It is an arithmetic number, because the mean of its divisors is an integer number (40272459).

Almost surely, 2^80544917 is an apocalyptic number.

It is an amenable number.

80544917 is a deficient number, since it is larger than the sum of its proper divisors (1).

80544917 is an equidigital number, since it uses as much as digits as its factorization.

80544917 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 80544917 is about 8974.6819999374. The cubic root of 80544917 is about 431.8630485096.

The spelling of 80544917 in words is "eighty million, five hundred forty-four thousand, nine hundred seventeen".