80838617 has 2 divisors, whose sum is σ = 80838618. Its totient is φ = 80838616.

The previous prime is 80838613. The next prime is 80838671. The reversal of 80838617 is 71683808.

Together with next prime (80838671) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 65869456 + 14969161 = 8116^2 + 3869^2 .

It is a cyclic number.

It is not a de Polignac number, because 80838617 - 2² = 80838613 is a prime.

It is a super-3 number, since 3×80838617³ (a number of 25 digits) contains 333 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (80838613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40419308 + 40419309.

It is an arithmetic number, because the mean of its divisors is an integer number (40419309).

Almost surely, 2^80838617 is an apocalyptic number.

It is an amenable number.

80838617 is a deficient number, since it is larger than the sum of its proper divisors (1).

80838617 is an equidigital number, since it uses as much as digits as its factorization.

80838617 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64512, while the sum is 41.

The square root of 80838617 is about 8991.0298075360. The cubic root of 80838617 is about 432.3873287312.

The spelling of 80838617 in words is "eighty million, eight hundred thirty-eight thousand, six hundred seventeen".