574603661 has 4 divisors (see below), whose sum is σ = 574703772. Its totient is φ = 574503552.

The previous prime is 574603649. The next prime is 574603663. The reversal of 574603661 is 166306475.

It is a happy number.

574603661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 475501636 + 99102025 = 21806^2 + 9955^2 .

It is a cyclic number.

It is not a de Polignac number, because 574603661 - 2¹⁸ = 574341517 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 (574603663) 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, 40886 + ... + 53111.

It is an arithmetic number, because the mean of its divisors is an integer number (143675943).

Almost surely, 2^574603661 is an apocalyptic number.

It is an amenable number.

574603661 is a deficient number, since it is larger than the sum of its proper divisors (100111).

574603661 is an equidigital number, since it uses as much as digits as its factorization.

574603661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100110.

The product of its (nonzero) digits is 90720, while the sum is 38.

The square root of 574603661 is about 23970.8919525328. The cubic root of 574603661 is about 831.3606467294.

The spelling of 574603661 in words is "five hundred seventy-four million, six hundred three thousand, six hundred sixty-one".