503861 has 8 divisors (see below), whose sum is σ = 553920. Its totient is φ = 456192.

The previous prime is 503857. The next prime is 503869. The reversal of 503861 is 168305.

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

It is a cyclic number.

It is not a de Polignac number, because 503861 - 2² = 503857 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (503869) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 140 + ... + 1013.

It is an arithmetic number, because the mean of its divisors is an integer number (69240).

2⁵⁰³⁸⁶¹ is an apocalyptic number.

It is an amenable number.

503861 is a deficient number, since it is larger than the sum of its proper divisors (50059).

503861 is a wasteful number, since it uses less digits than its factorization.

503861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1195.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 503861 is about 709.8316701867. The cubic root of 503861 is about 79.5738274938.

The spelling of 503861 in words is "five hundred three thousand, eight hundred sixty-one".