2604779 has 2 divisors, whose sum is σ = 2604780. Its totient is φ = 2604778.

The previous prime is 2604769. The next prime is 2604799. The reversal of 2604779 is 9774062.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2604779 - 2⁸ = 2604523 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a plaindrome in base 15.

It is not a weakly prime, because it can be changed into another prime (2604739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1302389 + 1302390.

It is an arithmetic number, because the mean of its divisors is an integer number (1302390).

2^2604779 is an apocalyptic number.

2604779 is a deficient number, since it is larger than the sum of its proper divisors (1).

2604779 is an equidigital number, since it uses as much as digits as its factorization.

2604779 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21168, while the sum is 35.

The square root of 2604779 is about 1613.9327743125. The cubic root of 2604779 is about 137.5910845528.

The spelling of 2604779 in words is "two million, six hundred four thousand, seven hundred seventy-nine".