916331 has 4 divisors (see below), whose sum is σ = 986832. Its totient is φ = 845832.

The previous prime is 916319. The next prime is 916337. The reversal of 916331 is 133619.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 133619 = 41 ⋅3259.

It is not a de Polignac number, because 916331 - 2¹⁸ = 654187 is a prime.

It is a super-2 number, since 2×916331² = 1679325003122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 916297 and 916306.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 916331.

It is not an unprimeable number, because it can be changed into a prime (916337) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35231 + ... + 35256.

It is an arithmetic number, because the mean of its divisors is an integer number (246708).

2⁹¹⁶³³¹ is an apocalyptic number.

916331 is a deficient number, since it is larger than the sum of its proper divisors (70501).

916331 is a wasteful number, since it uses less digits than its factorization.

916331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70500.

The product of its digits is 486, while the sum is 23.

The square root of 916331 is about 957.2517955063. The cubic root of 916331 is about 97.1294194833.

The spelling of 916331 in words is "nine hundred sixteen thousand, three hundred thirty-one".