916538 has 16 divisors (see below), whose sum is σ = 1664064. Its totient is φ = 369600.

The previous prime is 916537. The next prime is 916561. The reversal of 916538 is 835619.

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 916538.

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

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1688 + ... + 2163.

It is an arithmetic number, because the mean of its divisors is an integer number (104004).

2⁹¹⁶⁵³⁸ is an apocalyptic number.

916538 is a deficient number, since it is larger than the sum of its proper divisors (747526).

916538 is a wasteful number, since it uses less digits than its factorization.

916538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3877.

The product of its digits is 6480, while the sum is 32.

The square root of 916538 is about 957.3599114231. The cubic root of 916538 is about 97.1367328072.

The spelling of 916538 in words is "nine hundred sixteen thousand, five hundred thirty-eight".