604515641 has 4 divisors (see below), whose sum is σ = 605409252. Its totient is φ = 603622032.

The previous prime is 604515617. The next prime is 604515661. The reversal of 604515641 is 146515406.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 146515406 = 2 ⋅73257703.

It can be written as a sum of positive squares in 2 ways, for example, as 564775225 + 39740416 = 23765^2 + 6304^2 .

It is a cyclic number.

It is not a de Polignac number, because 604515641 - 2⁶ = 604515577 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 604515598 and 604515607.

It is not an unprimeable number, because it can be changed into a prime (604515661) 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 3 ways as a sum of consecutive naturals, for example, 445790 + ... + 447143.

It is an arithmetic number, because the mean of its divisors is an integer number (151352313).

Almost surely, 2^604515641 is an apocalyptic number.

It is an amenable number.

604515641 is a deficient number, since it is larger than the sum of its proper divisors (893611).

604515641 is an equidigital number, since it uses as much as digits as its factorization.

604515641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 893610.

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 604515641 is about 24586.8997842347. The cubic root of 604515641 is about 845.5432898471.

The spelling of 604515641 in words is "six hundred four million, five hundred fifteen thousand, six hundred forty-one".