2604780247 has 2 divisors, whose sum is σ = 2604780248. Its totient is φ = 2604780246.

The previous prime is 2604780229. The next prime is 2604780251. The reversal of 2604780247 is 7420874062.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2604780247 - 2³¹ = 457296599 is a prime.

It is a super-2 number, since 2×2604780247² = 13569760270322762018, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2604780047) 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 as a sum of consecutive naturals, namely, 1302390123 + 1302390124.

It is an arithmetic number, because the mean of its divisors is an integer number (1302390124).

Almost surely, 2^2604780247 is an apocalyptic number.

2604780247 is a deficient number, since it is larger than the sum of its proper divisors (1).

2604780247 is an equidigital number, since it uses as much as digits as its factorization.

2604780247 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 150528, while the sum is 40.

The square root of 2604780247 is about 51037.0477888367. The cubic root of 2604780247 is about 1375.9110650941.

The spelling of 2604780247 in words is "two billion, six hundred four million, seven hundred eighty thousand, two hundred forty-seven".