604505491 has 2 divisors, whose sum is σ = 604505492. Its totient is φ = 604505490.

The previous prime is 604505483. The next prime is 604505507. The reversal of 604505491 is 194505406.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 604505491 - 2³ = 604505483 is a prime.

It is not a weakly prime, because it can be changed into another prime (604505401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 302252745 + 302252746.

It is an arithmetic number, because the mean of its divisors is an integer number (302252746).

Almost surely, 2^604505491 is an apocalyptic number.

604505491 is a deficient number, since it is larger than the sum of its proper divisors (1).

604505491 is an equidigital number, since it uses as much as digits as its factorization.

604505491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 604505491 is about 24586.6933726355. The cubic root of 604505491 is about 845.5385575116.

The spelling of 604505491 in words is "six hundred four million, five hundred five thousand, four hundred ninety-one".