505894 has 8 divisors (see below), whose sum is σ = 798840. Its totient is φ = 239616.

The previous prime is 505877. The next prime is 505907. The reversal of 505894 is 498505.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an Ulam number.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6619 + ... + 6694.

It is an arithmetic number, because the mean of its divisors is an integer number (99855).

2⁵⁰⁵⁸⁹⁴ is an apocalyptic number.

505894 is a deficient number, since it is larger than the sum of its proper divisors (292946).

505894 is a wasteful number, since it uses less digits than its factorization.

505894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13334.

The product of its (nonzero) digits is 7200, while the sum is 31.

The square root of 505894 is about 711.2622582423. The cubic root of 505894 is about 79.6807065079.

The spelling of 505894 in words is "five hundred five thousand, eight hundred ninety-four".