501849 has 8 divisors (see below), whose sum is σ = 743520. Its totient is φ = 334548.

The previous prime is 501841. The next prime is 501863. The reversal of 501849 is 948105.

It is not a de Polignac number, because 501849 - 2³ = 501841 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 18587 = 501849 / (5 + 0 + 1 + 8 + 4 + 9).

It is not an unprimeable number, because it can be changed into a prime (501841) 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, 9267 + ... + 9320.

It is an arithmetic number, because the mean of its divisors is an integer number (92940).

2⁵⁰¹⁸⁴⁹ is an apocalyptic number.

It is an amenable number.

501849 is a deficient number, since it is larger than the sum of its proper divisors (241671).

501849 is a wasteful number, since it uses less digits than its factorization.

501849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18596 (or 18590 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 501849 is about 708.4130151261. The cubic root of 501849 is about 79.4677690636.

The spelling of 501849 in words is "five hundred one thousand, eight hundred forty-nine".