916424 has 8 divisors (see below), whose sum is σ = 1718310. Its totient is φ = 458208.

The previous prime is 916417. The next prime is 916441. The reversal of 916424 is 424619.

It can be written as a sum of positive squares in only one way, i.e., 902500 + 13924 = 950^2 + 118^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 916393 and 916402.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 57269 + ... + 57284.

2⁹¹⁶⁴²⁴ is an apocalyptic number.

It is an amenable number.

916424 is a deficient number, since it is larger than the sum of its proper divisors (801886).

916424 is a wasteful number, since it uses less digits than its factorization.

916424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114559 (or 114555 counting only the distinct ones).

The product of its digits is 1728, while the sum is 26.

The square root of 916424 is about 957.3003708346. The cubic root of 916424 is about 97.1327053158.

The spelling of 916424 in words is "nine hundred sixteen thousand, four hundred twenty-four".