504372817 has 4 divisors (see below), whose sum is σ = 543170740. Its totient is φ = 465574896.

The previous prime is 504372811. The next prime is 504372829. The reversal of 504372817 is 718273405.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 718273405 = 5 ⋅143654681.

It can be written as a sum of positive squares in 2 ways, for example, as 124746561 + 379626256 = 11169^2 + 19484^2 .

It is a cyclic number.

It is not a de Polignac number, because 504372817 - 2¹⁹ = 503848529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (504372811) 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, 19398942 + ... + 19398967.

It is an arithmetic number, because the mean of its divisors is an integer number (135792685).

Almost surely, 2^504372817 is an apocalyptic number.

It is an amenable number.

504372817 is a deficient number, since it is larger than the sum of its proper divisors (38797923).

504372817 is a wasteful number, since it uses less digits than its factorization.

504372817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38797922.

The product of its (nonzero) digits is 47040, while the sum is 37.

The square root of 504372817 is about 22458.2460802263. The cubic root of 504372817 is about 796.0076181059.

It can be divided in two parts, 504 and 372817, that added together give a square (373321 = 611²).

The spelling of 504372817 in words is "five hundred four million, three hundred seventy-two thousand, eight hundred seventeen".