2604663397 has 8 divisors (see below), whose sum is σ = 2981160576. Its totient is φ = 2229266832.

The previous prime is 2604663377. The next prime is 2604663403. The reversal of 2604663397 is 7933664062.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2604663397 - 2¹¹ = 2604661349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2604663337) 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 7 ways as a sum of consecutive naturals, for example, 270073 + ... + 279550.

It is an arithmetic number, because the mean of its divisors is an integer number (372645072).

Almost surely, 2^2604663397 is an apocalyptic number.

It is an amenable number.

2604663397 is a deficient number, since it is larger than the sum of its proper divisors (376497179).

2604663397 is an equidigital number, since it uses as much as digits as its factorization.

2604663397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550307.

The product of its (nonzero) digits is 979776, while the sum is 46.

The square root of 2604663397 is about 51035.9030193451. The cubic root of 2604663397 is about 1375.8904904074.

The spelling of 2604663397 in words is "two billion, six hundred four million, six hundred sixty-three thousand, three hundred ninety-seven".