916628 has 6 divisors (see below), whose sum is σ = 1604106. Its totient is φ = 458312.

The previous prime is 916621. The next prime is 916633. The reversal of 916628 is 826619.

It can be written as a sum of positive squares in only one way, i.e., 806404 + 110224 = 898^2 + 332^2 .

It is a junction number, because it is equal to n+sod(n) for n = 916594 and 916603.

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 916628.

It is not an unprimeable number, because it can be changed into a prime (916621) by changing a digit.

916628 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114575 + ... + 114582.

It is an arithmetic number, because the mean of its divisors is an integer number (267351).

2⁹¹⁶⁶²⁸ is an apocalyptic number.

It is an amenable number.

916628 is a deficient number, since it is larger than the sum of its proper divisors (687478).

916628 is a wasteful number, since it uses less digits than its factorization.

916628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229161 (or 229159 counting only the distinct ones).

The product of its digits is 5184, while the sum is 32.

The square root of 916628 is about 957.4069145353. The cubic root of 916628 is about 97.1399121697.

Subtracting from 916628 its reverse (826619), we obtain a palindrome (90009).

The spelling of 916628 in words is "nine hundred sixteen thousand, six hundred twenty-eight".