604781604 has 72 divisors (see below), whose sum is σ = 1803529728. Its totient is φ = 167218560.

The previous prime is 604781603. The next prime is 604781623. The reversal of 604781604 is 406187406.

604781604 is a `hidden beast` number, since 6 + 0 + 47 + 8 + 1 + 604 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (604781603) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30897 + ... + 46520.

It is an arithmetic number, because the mean of its divisors is an integer number (25049024).

Almost surely, 2^604781604 is an apocalyptic number.

It is an amenable number.

604781604 is an abundant number, since it is smaller than the sum of its proper divisors (1198748124).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

604781604 is a wasteful number, since it uses less digits than its factorization.

604781604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77465 (or 77460 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 604781604 is about 24592.3078217560. The cubic root of 604781604 is about 845.6672735474.

The spelling of 604781604 in words is "six hundred four million, seven hundred eighty-one thousand, six hundred four".