501867 has 6 divisors (see below), whose sum is σ = 724932. Its totient is φ = 334572.

The previous prime is 501863. The next prime is 501889. The reversal of 501867 is 768105.

It is not a de Polignac number, because 501867 - 2² = 501863 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 501867.

It is not an unprimeable number, because it can be changed into a prime (501863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 27873 + ... + 27890.

It is an arithmetic number, because the mean of its divisors is an integer number (120822).

2⁵⁰¹⁸⁶⁷ is an apocalyptic number.

501867 is a deficient number, since it is larger than the sum of its proper divisors (223065).

501867 is a wasteful number, since it uses less digits than its factorization.

501867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55769 (or 55766 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The square root of 501867 is about 708.4257194654. The cubic root of 501867 is about 79.4687191520.

The spelling of 501867 in words is "five hundred one thousand, eight hundred sixty-seven".