500644667 has 2 divisors, whose sum is σ = 500644668. Its totient is φ = 500644666.

The previous prime is 500644663. The next prime is 500644673. The reversal of 500644667 is 766446005.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 500644667 - 2² = 500644663 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 500644667.

It is not a weakly prime, because it can be changed into another prime (500644663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250322333 + 250322334.

It is an arithmetic number, because the mean of its divisors is an integer number (250322334).

Almost surely, 2^500644667 is an apocalyptic number.

500644667 is a deficient number, since it is larger than the sum of its proper divisors (1).

500644667 is an equidigital number, since it uses as much as digits as its factorization.

500644667 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120960, while the sum is 38.

The square root of 500644667 is about 22375.0903238400. The cubic root of 500644667 is about 794.0414945099.

The spelling of 500644667 in words is "five hundred million, six hundred forty-four thousand, six hundred sixty-seven".