917056 has 56 divisors (see below), whose sum is σ = 2194560. Its totient is φ = 371712.

The previous prime is 917053. The next prime is 917083. The reversal of 917056 is 650719.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (56).

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (917051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10260 + ... + 10348.

2⁹¹⁷⁰⁵⁶ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 917056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1097280).

917056 is an abundant number, since it is smaller than the sum of its proper divisors (1277504).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

917056 is a wasteful number, since it uses less digits than its factorization.

917056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131 (or 121 counting only the distinct ones).

The product of its (nonzero) digits is 1890, while the sum is 28.

The square root of 917056 is about 957.6304088739. The cubic root of 917056 is about 97.1550289576.

The spelling of 917056 in words is "nine hundred seventeen thousand, fifty-six".