604813381 has 2 divisors, whose sum is σ = 604813382. Its totient is φ = 604813380.

The previous prime is 604813367. The next prime is 604813397. The reversal of 604813381 is 183318406.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 604717281 + 96100 = 24591^2 + 310^2 .

It is a cyclic number.

It is not a de Polignac number, because 604813381 - 2²⁵ = 571258949 is a prime.

It is a super-2 number, since 2×604813381² = 731598451673302322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (604813331) 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, 302406690 + 302406691.

It is an arithmetic number, because the mean of its divisors is an integer number (302406691).

Almost surely, 2^604813381 is an apocalyptic number.

It is an amenable number.

604813381 is a deficient number, since it is larger than the sum of its proper divisors (1).

604813381 is an equidigital number, since it uses as much as digits as its factorization.

604813381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 604813381 is about 24592.9538892749. The cubic root of 604813381 is about 845.6820845680.

The spelling of 604813381 in words is "six hundred four million, eight hundred thirteen thousand, three hundred eighty-one".