501949 has 4 divisors (see below), whose sum is σ = 573664. Its totient is φ = 430236.

The previous prime is 501947. The next prime is 501953. The reversal of 501949 is 949105.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 501949 - 2¹ = 501947 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (501947) 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, 35847 + ... + 35860.

It is an arithmetic number, because the mean of its divisors is an integer number (143416).

2⁵⁰¹⁹⁴⁹ is an apocalyptic number.

It is an amenable number.

501949 is a deficient number, since it is larger than the sum of its proper divisors (71715).

501949 is an equidigital number, since it uses as much as digits as its factorization.

501949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71714.

The product of its (nonzero) digits is 1620, while the sum is 28.

The square root of 501949 is about 708.4835919060. The cubic root of 501949 is about 79.4730470450.

The spelling of 501949 in words is "five hundred one thousand, nine hundred forty-nine".