604738081 has 4 divisors (see below), whose sum is σ = 605003652. Its totient is φ = 604472512.

The previous prime is 604738063. The next prime is 604738097. The reversal of 604738081 is 180837406.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 181037025 + 423701056 = 13455^2 + 20584^2 .

It is a cyclic number.

It is not a de Polignac number, because 604738081 - 2⁹ = 604737569 is a prime.

It is a super-2 number, since 2×604738081² = 731416293223125122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 604738081.

It is not an unprimeable number, because it can be changed into a prime (604738021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 129340 + ... + 133933.

It is an arithmetic number, because the mean of its divisors is an integer number (151250913).

Almost surely, 2^604738081 is an apocalyptic number.

It is an amenable number.

604738081 is a deficient number, since it is larger than the sum of its proper divisors (265571).

604738081 is a wasteful number, since it uses less digits than its factorization.

604738081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265570.

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 604738081 is about 24591.4229153174. The cubic root of 604738081 is about 845.6469869627.

The spelling of 604738081 in words is "six hundred four million, seven hundred thirty-eight thousand, eighty-one".