537967609 has 4 divisors (see below), whose sum is σ = 538204516. Its totient is φ = 537730704.

The previous prime is 537967607. The next prime is 537967637. The reversal of 537967609 is 906769735.

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 42771600 + 495196009 = 6540^2 + 22253^2 .

It is a cyclic number.

It is not a de Polignac number, because 537967609 - 2¹ = 537967607 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (537967607) 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, 115014 + ... + 119599.

It is an arithmetic number, because the mean of its divisors is an integer number (134551129).

Almost surely, 2^537967609 is an apocalyptic number.

It is an amenable number.

537967609 is a deficient number, since it is larger than the sum of its proper divisors (236907).

537967609 is a wasteful number, since it uses less digits than its factorization.

537967609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236906.

The product of its (nonzero) digits is 2143260, while the sum is 52.

The square root of 537967609 is about 23194.1287613913. The cubic root of 537967609 is about 813.3023787638.

The spelling of 537967609 in words is "five hundred thirty-seven million, nine hundred sixty-seven thousand, six hundred nine".