536439 has 4 divisors (see below), whose sum is σ = 715256. Its totient is φ = 357624.

The previous prime is 536423. The next prime is 536441. The reversal of 536439 is 934635.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 536439 - 2⁴ = 536423 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 536439.

It is not an unprimeable number, because it can be changed into a prime (536449) 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, 89404 + ... + 89409.

It is an arithmetic number, because the mean of its divisors is an integer number (178814).

2⁵³⁶⁴³⁹ is an apocalyptic number.

536439 is a deficient number, since it is larger than the sum of its proper divisors (178817).

536439 is a wasteful number, since it uses less digits than its factorization.

536439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178816.

The product of its digits is 9720, while the sum is 30.

The square root of 536439 is about 732.4199614975. The cubic root of 536439 is about 81.2531328181.

The spelling of 536439 in words is "five hundred thirty-six thousand, four hundred thirty-nine".