2005604999 has 2 divisors, whose sum is σ = 2005605000. Its totient is φ = 2005604998.

The previous prime is 2005604989. The next prime is 2005605023. The reversal of 2005604999 is 9994065002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2005604999 - 2¹⁶ = 2005539463 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2005604989) 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, 1002802499 + 1002802500.

It is an arithmetic number, because the mean of its divisors is an integer number (1002802500).

Almost surely, 2^2005604999 is an apocalyptic number.

2005604999 is a deficient number, since it is larger than the sum of its proper divisors (1).

2005604999 is an equidigital number, since it uses as much as digits as its factorization.

2005604999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 174960, while the sum is 44.

The square root of 2005604999 is about 44783.9815000855. The cubic root of 2005604999 is about 1261.0969281494.

The spelling of 2005604999 in words is "two billion, five million, six hundred four thousand, nine hundred ninety-nine".