604728635449 has 3 divisors (see below), whose sum is σ = 604729413093. Its totient is φ = 604727857806.

The previous prime is 604728635419. The next prime is 604728635507. The reversal of 604728635449 is 944536827406.

The square root of 604728635449 is 777643.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 944536827406 = 2 ⋅472268413703.

It is not a de Polignac number, because 604728635449 - 2¹³ = 604728627257 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 604728635393 and 604728635402.

It is not an unprimeable number, because it can be changed into a prime (604728635419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 388822 + ... + 1166464.

It is an arithmetic number, because the mean of its divisors is an integer number (201576471031).

Almost surely, 2^604728635449 is an apocalyptic number.

604728635449 is the 777643-rd square number.

604728635449 is the 388822-nd centered octagonal number.

It is an amenable number.

604728635449 is a deficient number, since it is larger than the sum of its proper divisors (777644).

604728635449 is an frugal number, since it uses more digits than its factorization.

604728635449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1555286 (or 777643 counting only the distinct ones).

The product of its (nonzero) digits is 34836480, while the sum is 58.

The spelling of 604728635449 in words is "six hundred four billion, seven hundred twenty-eight million, six hundred thirty-five thousand, four hundred forty-nine".