502649 has 4 divisors (see below), whose sum is σ = 574464. Its totient is φ = 430836.

The previous prime is 502643. The next prime is 502651. The reversal of 502649 is 946205.

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 not a de Polignac number, because 502649 - 2⁴ = 502633 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (502643) 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 3 ways as a sum of consecutive naturals, for example, 35897 + ... + 35910.

It is an arithmetic number, because the mean of its divisors is an integer number (143616).

2⁵⁰²⁶⁴⁹ is an apocalyptic number.

It is an amenable number.

502649 is a deficient number, since it is larger than the sum of its proper divisors (71815).

502649 is an equidigital number, since it uses as much as digits as its factorization.

502649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71814.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 502649 is about 708.9774326451. The cubic root of 502649 is about 79.5099733015.

Subtracting 502649 from its reverse (946205), we obtain a square (443556 = 666²).

The spelling of 502649 in words is "five hundred two thousand, six hundred forty-nine".