916905 has 16 divisors (see below), whose sum is σ = 1600704. Its totient is φ = 444480.

The previous prime is 916879. The next prime is 916907. The reversal of 916905 is 509619.

It is not a de Polignac number, because 916905 - 2⁶ = 916841 is a prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 916905.

It is not an unprimeable number, because it can be changed into a prime (916907) 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, 2614 + ... + 2943.

It is an arithmetic number, because the mean of its divisors is an integer number (100044).

2⁹¹⁶⁹⁰⁵ is an apocalyptic number.

It is an amenable number.

916905 is a deficient number, since it is larger than the sum of its proper divisors (683799).

916905 is a wasteful number, since it uses less digits than its factorization.

916905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5576.

The product of its (nonzero) digits is 2430, while the sum is 30.

The square root of 916905 is about 957.5515651911. The cubic root of 916905 is about 97.1496962354.

It can be divided in two parts, 91 and 6905, that added together give a palindrome (6996).

The spelling of 916905 in words is "nine hundred sixteen thousand, nine hundred five".