80646017 has 2 divisors, whose sum is σ = 80646018. Its totient is φ = 80646016.

The previous prime is 80645969. The next prime is 80646023. The reversal of 80646017 is 71064608.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 73891216 + 6754801 = 8596^2 + 2599^2 .

It is a cyclic number.

It is not a de Polignac number, because 80646017 - 2²⁴ = 63868801 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (80646047) 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, 40323008 + 40323009.

It is an arithmetic number, because the mean of its divisors is an integer number (40323009).

Almost surely, 2^80646017 is an apocalyptic number.

It is an amenable number.

80646017 is a deficient number, since it is larger than the sum of its proper divisors (1).

80646017 is an equidigital number, since it uses as much as digits as its factorization.

80646017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 80646017 is about 8980.3127451108. The cubic root of 80646017 is about 432.0436644965.

It can be divided in two parts, 8064601 and 7, that added together give a palindrome (8064608).

The spelling of 80646017 in words is "eighty million, six hundred forty-six thousand, seventeen".