501799667 has 4 divisors (see below), whose sum is σ = 505167600. Its totient is φ = 498431736.

The previous prime is 501799651. The next prime is 501799679. The reversal of 501799667 is 766997105.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 501799667 - 2⁴ = 501799651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (501799687) 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 in 3 ways as a sum of consecutive naturals, for example, 1683743 + ... + 1684040.

It is an arithmetic number, because the mean of its divisors is an integer number (126291900).

Almost surely, 2^501799667 is an apocalyptic number.

501799667 is a deficient number, since it is larger than the sum of its proper divisors (3367933).

501799667 is a wasteful number, since it uses less digits than its factorization.

501799667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3367932.

The product of its (nonzero) digits is 714420, while the sum is 50.

The square root of 501799667 is about 22400.8854066084. The cubic root of 501799667 is about 794.6516501870.

The spelling of 501799667 in words is "five hundred one million, seven hundred ninety-nine thousand, six hundred sixty-seven".