916438 has 4 divisors (see below), whose sum is σ = 1374660. Its totient is φ = 458218.

The previous prime is 916417. The next prime is 916441. The reversal of 916438 is 834619.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 834619 = 67 ⋅12457.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 229108 + ... + 229111.

It is an arithmetic number, because the mean of its divisors is an integer number (343665).

2⁹¹⁶⁴³⁸ is an apocalyptic number.

916438 is a deficient number, since it is larger than the sum of its proper divisors (458222).

916438 is a wasteful number, since it uses less digits than its factorization.

916438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 458221.

The product of its digits is 5184, while the sum is 31.

The square root of 916438 is about 957.3076830361. The cubic root of 916438 is about 97.1331999380.

The spelling of 916438 in words is "nine hundred sixteen thousand, four hundred thirty-eight".