504390213 has 16 divisors (see below), whose sum is σ = 747605760. Its totient is φ = 336097728.

The previous prime is 504390209. The next prime is 504390251. The reversal of 504390213 is 312093405.

It is not a de Polignac number, because 504390213 - 2² = 504390209 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (504394213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83956 + ... + 89762.

It is an arithmetic number, because the mean of its divisors is an integer number (46725360).

Almost surely, 2^504390213 is an apocalyptic number.

It is an amenable number.

504390213 is a deficient number, since it is larger than the sum of its proper divisors (243215547).

504390213 is a wasteful number, since it uses less digits than its factorization.

504390213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9033 (or 9027 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 504390213 is about 22458.6333733823. The cubic root of 504390213 is about 796.0167695305.

The spelling of 504390213 in words is "five hundred four million, three hundred ninety thousand, two hundred thirteen".