916831 has 2 divisors, whose sum is σ = 916832. Its totient is φ = 916830.

The previous prime is 916787. The next prime is 916837. The reversal of 916831 is 138619.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 916831 - 2⁷ = 916703 is a prime.

It is a super-2 number, since 2×916831² = 1681158165122, which contains 22 as substring.

It is a Chen prime.

916831 is a lucky number.

It is equal to p₇₂₄₉₆ and since 916831 and 72496 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 916831.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (916837) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 458415 + 458416.

It is an arithmetic number, because the mean of its divisors is an integer number (458416).

2⁹¹⁶⁸³¹ is an apocalyptic number.

916831 is a deficient number, since it is larger than the sum of its proper divisors (1).

916831 is an equidigital number, since it uses as much as digits as its factorization.

916831 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1296, while the sum is 28.

The square root of 916831 is about 957.5129241948. The cubic root of 916831 is about 97.1470826346.

The spelling of 916831 in words is "nine hundred sixteen thousand, eight hundred thirty-one".