513684671 has 2 divisors, whose sum is σ = 513684672. Its totient is φ = 513684670.

The previous prime is 513684641. The next prime is 513684673. The reversal of 513684671 is 176486315.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 513684671 - 2⁶ = 513684607 is a prime.

Together with 513684673, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (513684673) 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, 256842335 + 256842336.

It is an arithmetic number, because the mean of its divisors is an integer number (256842336).

Almost surely, 2^513684671 is an apocalyptic number.

513684671 is a deficient number, since it is larger than the sum of its proper divisors (1).

513684671 is an equidigital number, since it uses as much as digits as its factorization.

513684671 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 120960, while the sum is 41.

The square root of 513684671 is about 22664.6127476293. The cubic root of 513684671 is about 800.8764722074.

The spelling of 513684671 in words is "five hundred thirteen million, six hundred eighty-four thousand, six hundred seventy-one".