500684381 has 2 divisors, whose sum is σ = 500684382. Its totient is φ = 500684380.

The previous prime is 500684377. The next prime is 500684413. The reversal of 500684381 is 183486005.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 497691481 + 2992900 = 22309^2 + 1730^2 .

It is a cyclic number.

It is not a de Polignac number, because 500684381 - 2² = 500684377 is a prime.

It is a super-2 number, since 2×500684381² = 501369698754706322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (500684311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250342190 + 250342191.

It is an arithmetic number, because the mean of its divisors is an integer number (250342191).

Almost surely, 2^500684381 is an apocalyptic number.

It is an amenable number.

500684381 is a deficient number, since it is larger than the sum of its proper divisors (1).

500684381 is an equidigital number, since it uses as much as digits as its factorization.

500684381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 500684381 is about 22375.9777663458. The cubic root of 500684381 is about 794.0624899266.

The spelling of 500684381 in words is "five hundred million, six hundred eighty-four thousand, three hundred eighty-one".