604781461 has 4 divisors (see below), whose sum is σ = 606105292. Its totient is φ = 603457632.

The previous prime is 604781453. The next prime is 604781501. The reversal of 604781461 is 164187406.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 164187406 = 2 ⋅82093703.

It can be written as a sum of positive squares in 2 ways, for example, as 391446225 + 213335236 = 19785^2 + 14606^2 .

It is a cyclic number.

It is not a de Polignac number, because 604781461 - 2³ = 604781453 is a prime.

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 604781461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (604781161) 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 3 ways as a sum of consecutive naturals, for example, 661230 + ... + 662143.

It is an arithmetic number, because the mean of its divisors is an integer number (151526323).

Almost surely, 2^604781461 is an apocalyptic number.

It is an amenable number.

604781461 is a deficient number, since it is larger than the sum of its proper divisors (1323831).

604781461 is a wasteful number, since it uses less digits than its factorization.

604781461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1323830.

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

The square root of 604781461 is about 24592.3049143426. The cubic root of 604781461 is about 845.6672068950.

The spelling of 604781461 in words is "six hundred four million, seven hundred eighty-one thousand, four hundred sixty-one".