604861 has 2 divisors, whose sum is σ = 604862. Its totient is φ = 604860.

The previous prime is 604859. The next prime is 604867. The reversal of 604861 is 168406.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 511225 + 93636 = 715^2 + 306^2 .

It is a cyclic number.

It is not a de Polignac number, because 604861 - 2¹ = 604859 is a prime.

Together with 604859, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (604867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 302430 + 302431.

It is an arithmetic number, because the mean of its divisors is an integer number (302431).

2⁶⁰⁴⁸⁶¹ is an apocalyptic number.

It is an amenable number.

604861 is a deficient number, since it is larger than the sum of its proper divisors (1).

604861 is an equidigital number, since it uses as much as digits as its factorization.

604861 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 604861 is about 777.7281015882. The cubic root of 604861 is about 84.5704278454.

The spelling of 604861 in words is "six hundred four thousand, eight hundred sixty-one".