535660865 has 4 divisors (see below), whose sum is σ = 642793044. Its totient is φ = 428528688.

The previous prime is 535660841. The next prime is 535660883. The reversal of 535660865 is 568066535.

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 195664144 + 339996721 = 13988^2 + 18439^2 .

It is a cyclic number.

It is not a de Polignac number, because 535660865 - 2¹² = 535656769 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53566082 + ... + 53566091.

It is an arithmetic number, because the mean of its divisors is an integer number (160698261).

Almost surely, 2^535660865 is an apocalyptic number.

It is an amenable number.

535660865 is a deficient number, since it is larger than the sum of its proper divisors (107132179).

535660865 is a wasteful number, since it uses less digits than its factorization.

535660865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107132178.

The product of its (nonzero) digits is 648000, while the sum is 44.

The square root of 535660865 is about 23144.3484462190. The cubic root of 535660865 is about 812.1382639050.

The spelling of 535660865 in words is "five hundred thirty-five million, six hundred sixty thousand, eight hundred sixty-five".