536643641 has 8 divisors (see below), whose sum is σ = 571158504. Its totient is φ = 502456320.

The previous prime is 536643623. The next prime is 536643647. The reversal of 536643641 is 146346635.

It can be written as a sum of positive squares in 4 ways, for example, as 26832400 + 509811241 = 5180^2 + 22579^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 536643641 - 2⁶ = 536643577 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 536643595 and 536643604.

It is not an unprimeable number, because it can be changed into a prime (536643647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78500 + ... + 85061.

It is an arithmetic number, because the mean of its divisors is an integer number (71394813).

Almost surely, 2^536643641 is an apocalyptic number.

It is an amenable number.

536643641 is a deficient number, since it is larger than the sum of its proper divisors (34514863).

536643641 is a wasteful number, since it uses less digits than its factorization.

536643641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163771.

The product of its digits is 155520, while the sum is 38.

The square root of 536643641 is about 23165.5701634991. The cubic root of 536643641 is about 812.6346366550.

The spelling of 536643641 in words is "five hundred thirty-six million, six hundred forty-three thousand, six hundred forty-one".