80808617 has 2 divisors, whose sum is σ = 80808618. Its totient is φ = 80808616.

The previous prime is 80808613. The next prime is 80808619. The reversal of 80808617 is 71680808.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 73685056 + 7123561 = 8584^2 + 2669^2 .

It is a cyclic number.

It is not a de Polignac number, because 80808617 - 2² = 80808613 is a prime.

It is a super-3 number, since 3×80808617³ (a number of 25 digits) contains 333 as substring.

Together with 80808619, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (80808613) 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, 40404308 + 40404309.

It is an arithmetic number, because the mean of its divisors is an integer number (40404309).

Almost surely, 2^80808617 is an apocalyptic number.

It is an amenable number.

80808617 is a deficient number, since it is larger than the sum of its proper divisors (1).

80808617 is an equidigital number, since it uses as much as digits as its factorization.

80808617 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21504, while the sum is 38.

The square root of 80808617 is about 8989.3613232532. The cubic root of 80808617 is about 432.3338343935. Note that the first 3 decimals are identical.

The spelling of 80808617 in words is "eighty million, eight hundred eight thousand, six hundred seventeen".