536805609 has 4 divisors (see below), whose sum is σ = 715740816. Its totient is φ = 357870404.

The previous prime is 536805587. The next prime is 536805649. The reversal of 536805609 is 906508635.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 536805609 - 2⁹ = 536805097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (536805649) 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, 89467599 + ... + 89467604.

It is an arithmetic number, because the mean of its divisors is an integer number (178935204).

Almost surely, 2^536805609 is an apocalyptic number.

It is an amenable number.

536805609 is a deficient number, since it is larger than the sum of its proper divisors (178935207).

536805609 is a wasteful number, since it uses less digits than its factorization.

536805609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178935206.

The product of its (nonzero) digits is 194400, while the sum is 42.

The square root of 536805609 is about 23169.0657774542. The cubic root of 536805609 is about 812.7163839930.

The spelling of 536805609 in words is "five hundred thirty-six million, eight hundred five thousand, six hundred nine".