604999979 has 2 divisors, whose sum is σ = 604999980. Its totient is φ = 604999978.

The previous prime is 604999973. The next prime is 605000003. The reversal of 604999979 is 979999406.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-604999979 is a prime.

It is not a weakly prime, because it can be changed into another prime (604999973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 302499989 + 302499990.

It is an arithmetic number, because the mean of its divisors is an integer number (302499990).

Almost surely, 2^604999979 is an apocalyptic number.

604999979 is a deficient number, since it is larger than the sum of its proper divisors (1).

604999979 is an equidigital number, since it uses as much as digits as its factorization.

604999979 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9920232, while the sum is 62.

The square root of 604999979 is about 24596.7473256120. The cubic root of 604999979 is about 845.7690460257.

The spelling of 604999979 in words is "six hundred four million, nine hundred ninety-nine thousand, nine hundred seventy-nine".