604661823 has 12 divisors (see below), whose sum is σ = 874464760. Its totient is φ = 402616656.

The previous prime is 604661779. The next prime is 604661843. The reversal of 604661823 is 328166406.

It is not a de Polignac number, because 604661823 - 2⁹ = 604661311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (604661843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33061 + ... + 47982.

Almost surely, 2^604661823 is an apocalyptic number.

604661823 is a deficient number, since it is larger than the sum of its proper divisors (269802937).

604661823 is a wasteful number, since it uses less digits than its factorization.

604661823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81878 (or 81875 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 604661823 is about 24589.8723664845. The cubic root of 604661823 is about 845.6114398607.

The spelling of 604661823 in words is "six hundred four million, six hundred sixty-one thousand, eight hundred twenty-three".