604078081 has 4 divisors (see below), whose sum is σ = 604133332. Its totient is φ = 604022832.

The previous prime is 604078037. The next prime is 604078103. The reversal of 604078081 is 180870406.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 449821681 + 154256400 = 21209^2 + 12420^2 .

It is a cyclic number.

It is not a de Polignac number, because 604078081 - 2¹⁷ = 603947009 is a prime.

It is a super-2 number, since 2×604078081² = 729820655889285122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (604028081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5106 + ... + 35131.

It is an arithmetic number, because the mean of its divisors is an integer number (151033333).

It is a Proth number, since it is equal to 18435 ⋅ 2¹⁵ + 1 and 18435 < 2¹⁵.

Almost surely, 2^604078081 is an apocalyptic number.

It is an amenable number.

604078081 is a deficient number, since it is larger than the sum of its proper divisors (55251).

604078081 is a wasteful number, since it uses less digits than its factorization.

604078081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55250.

The product of its (nonzero) digits is 10752, while the sum is 34.

The square root of 604078081 is about 24577.9999389698. Note that the first 4 decimals coincide. The cubic root of 604078081 is about 845.3392337963.

The spelling of 604078081 in words is "six hundred four million, seventy-eight thousand, eighty-one".