504789949 has 2 divisors, whose sum is σ = 504789950. Its totient is φ = 504789948.

The previous prime is 504789937. The next prime is 504789977. The reversal of 504789949 is 949987405.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 388365849 + 116424100 = 19707^2 + 10790^2 .

It is a cyclic number.

It is not a de Polignac number, because 504789949 - 2¹⁹ = 504265661 is a prime.

It is a super-2 number, since 2×504789949² = 509625785222845202, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 504789949.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (501789949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252394974 + 252394975.

It is an arithmetic number, because the mean of its divisors is an integer number (252394975).

Almost surely, 2^504789949 is an apocalyptic number.

It is an amenable number.

504789949 is a deficient number, since it is larger than the sum of its proper divisors (1).

504789949 is an equidigital number, since it uses as much as digits as its factorization.

504789949 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3265920, while the sum is 55.

The square root of 504789949 is about 22467.5309947488. The cubic root of 504789949 is about 796.2269986546.

The spelling of 504789949 in words is "five hundred four million, seven hundred eighty-nine thousand, nine hundred forty-nine".