501667 has 4 divisors (see below), whose sum is σ = 506736. Its totient is φ = 496600.

The previous prime is 501659. The next prime is 501691. The reversal of 501667 is 766105.

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 501667 - 2³ = 501659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (501617) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2383 + ... + 2584.

It is an arithmetic number, because the mean of its divisors is an integer number (126684).

2⁵⁰¹⁶⁶⁷ is an apocalyptic number.

501667 is a deficient number, since it is larger than the sum of its proper divisors (5069).

501667 is a wasteful number, since it uses less digits than its factorization.

501667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5068.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 501667 is about 708.2845473396. The cubic root of 501667 is about 79.4581613378.

The spelling of 501667 in words is "five hundred one thousand, six hundred sixty-seven".