604306861 has 2 divisors, whose sum is σ = 604306862. Its totient is φ = 604306860.

The previous prime is 604306823. The next prime is 604306877. The reversal of 604306861 is 168603406.

604306861 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 479872836 + 124434025 = 21906^2 + 11155^2 .

It is a cyclic number.

It is not a de Polignac number, because 604306861 - 2⁹ = 604306349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (604306811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 302153430 + 302153431.

It is an arithmetic number, because the mean of its divisors is an integer number (302153431).

Almost surely, 2^604306861 is an apocalyptic number.

It is an amenable number.

604306861 is a deficient number, since it is larger than the sum of its proper divisors (1).

604306861 is an equidigital number, since it uses as much as digits as its factorization.

604306861 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 604306861 is about 24582.6536606608. The cubic root of 604306861 is about 845.4459376074.

The spelling of 604306861 in words is "six hundred four million, three hundred six thousand, eight hundred sixty-one".