604610891 has 2 divisors, whose sum is σ = 604610892. Its totient is φ = 604610890.

The previous prime is 604610873. The next prime is 604610911. The reversal of 604610891 is 198016406.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 604610891 - 2⁶ = 604610827 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (604610801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 302305445 + 302305446.

It is an arithmetic number, because the mean of its divisors is an integer number (302305446).

Almost surely, 2^604610891 is an apocalyptic number.

604610891 is a deficient number, since it is larger than the sum of its proper divisors (1).

604610891 is an equidigital number, since it uses as much as digits as its factorization.

604610891 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 604610891 is about 24588.8367150624. The cubic root of 604610891 is about 845.5876966213.

The spelling of 604610891 in words is "six hundred four million, six hundred ten thousand, eight hundred ninety-one".