916855 has 8 divisors (see below), whose sum is σ = 1106352. Its totient is φ = 729408.

The previous prime is 916841. The next prime is 916859. The reversal of 916855 is 558619.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 916855 - 2¹⁵ = 884087 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 916855.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (916859) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 772 + ... + 1558.

It is an arithmetic number, because the mean of its divisors is an integer number (138294).

2⁹¹⁶⁸⁵⁵ is an apocalyptic number.

916855 is a deficient number, since it is larger than the sum of its proper divisors (189497).

916855 is a wasteful number, since it uses less digits than its factorization.

916855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1025.

The product of its digits is 10800, while the sum is 34.

The square root of 916855 is about 957.5254565807. The cubic root of 916855 is about 97.1479303043.

It can be divided in two parts, 916 and 855, that added together give a palindrome (1771).

The spelling of 916855 in words is "nine hundred sixteen thousand, eight hundred fifty-five".