916539 has 16 divisors (see below), whose sum is σ = 1338624. Its totient is φ = 554400.

The previous prime is 916537. The next prime is 916561. The reversal of 916539 is 935619.

It is not a de Polignac number, because 916539 - 2¹ = 916537 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (916537) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2604 + ... + 2934.

It is an arithmetic number, because the mean of its divisors is an integer number (83664).

2⁹¹⁶⁵³⁹ is an apocalyptic number.

916539 is a deficient number, since it is larger than the sum of its proper divisors (422085).

916539 is a wasteful number, since it uses less digits than its factorization.

916539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418.

The product of its digits is 7290, while the sum is 33.

The square root of 916539 is about 957.3604336926. The cubic root of 916539 is about 97.1367681346.

It can be divided in two parts, 9165 and 39, that multiplied together give a triangular number (357435 = T₈₄₅).

The spelling of 916539 in words is "nine hundred sixteen thousand, five hundred thirty-nine".