504691 has 12 divisors (see below), whose sum is σ = 573496. Its totient is φ = 443520.

The previous prime is 504683. The next prime is 504727. The reversal of 504691 is 196405.

It is not a de Polignac number, because 504691 - 2³ = 504683 is a prime.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (504631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5155 + ... + 5251.

2⁵⁰⁴⁶⁹¹ is an apocalyptic number.

504691 is a deficient number, since it is larger than the sum of its proper divisors (68805).

504691 is a wasteful number, since it uses less digits than its factorization.

504691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162 (or 151 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 504691 is about 710.4160752686. The cubic root of 504691 is about 79.6174969744.

The spelling of 504691 in words is "five hundred four thousand, six hundred ninety-one".