2604923605 has 16 divisors (see below), whose sum is σ = 3171518640. Its totient is φ = 2053582848.

The previous prime is 2604923599. The next prime is 2604923647. The reversal of 2604923605 is 5063294062.

It can be written as a sum of positive squares in 8 ways, for example, as 556516 + 2604367089 = 746^2 + 51033^2 .

It is a cyclic number.

It is not a de Polignac number, because 2604923605 - 2³ = 2604923597 is a prime.

It is a congruent number.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 541089 + ... + 545881.

It is an arithmetic number, because the mean of its divisors is an integer number (198219915).

Almost surely, 2^2604923605 is an apocalyptic number.

It is an amenable number.

2604923605 is a deficient number, since it is larger than the sum of its proper divisors (566595035).

2604923605 is a wasteful number, since it uses less digits than its factorization.

2604923605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6360.

The product of its (nonzero) digits is 77760, while the sum is 37.

The square root of 2604923605 is about 51038.4522198705. The cubic root of 2604923605 is about 1375.9363064096.

The spelling of 2604923605 in words is "two billion, six hundred four million, nine hundred twenty-three thousand, six hundred five".