671017099 has 2 divisors, whose sum is σ = 671017100. Its totient is φ = 671017098.

The previous prime is 671017097. The next prime is 671017133. The reversal of 671017099 is 990710176.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 671017099 - 2¹ = 671017097 is a prime.

Together with 671017097, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (671017097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335508549 + 335508550.

It is an arithmetic number, because the mean of its divisors is an integer number (335508550).

Almost surely, 2^671017099 is an apocalyptic number.

671017099 is a deficient number, since it is larger than the sum of its proper divisors (1).

671017099 is an equidigital number, since it uses as much as digits as its factorization.

671017099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23814, while the sum is 40.

The square root of 671017099 is about 25903.9977416614. The cubic root of 671017099 is about 875.4765726032.

The spelling of 671017099 in words is "six hundred seventy-one million, seventeen thousand, ninety-nine".