537609 has 4 divisors (see below), whose sum is σ = 716816. Its totient is φ = 358404.

The previous prime is 537599. The next prime is 537611. The reversal of 537609 is 906735.

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 de Polignac number, because none of the positive numbers 2^k-537609 is a prime.

It is a D-number.

It is a Duffinian number.

It is a nialpdrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (537679) 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, 89599 + ... + 89604.

It is an arithmetic number, because the mean of its divisors is an integer number (179204).

2⁵³⁷⁶⁰⁹ is an apocalyptic number.

It is an amenable number.

537609 is a deficient number, since it is larger than the sum of its proper divisors (179207).

537609 is a wasteful number, since it uses less digits than its factorization.

537609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179206.

The product of its (nonzero) digits is 5670, while the sum is 30.

The square root of 537609 is about 733.2182485454. The cubic root of 537609 is about 81.3121622910.

The spelling of 537609 in words is "five hundred thirty-seven thousand, six hundred nine".