916859 has 2 divisors, whose sum is σ = 916860. Its totient is φ = 916858.

The previous prime is 916841. The next prime is 916871. The reversal of 916859 is 958619.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 916859 - 2¹² = 912763 is a prime.

It is a super-3 number, since 3×916859³ = 2312218714928483337, which contains 333 as substring.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 916859.

It is not a weakly prime, because it can be changed into another prime (916879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 458429 + 458430.

It is an arithmetic number, because the mean of its divisors is an integer number (458430).

2⁹¹⁶⁸⁵⁹ is an apocalyptic number.

916859 is a deficient number, since it is larger than the sum of its proper divisors (1).

916859 is an equidigital number, since it uses as much as digits as its factorization.

916859 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19440, while the sum is 38.

The square root of 916859 is about 957.5275452957. The cubic root of 916859 is about 97.1480715812.

The spelling of 916859 in words is "nine hundred sixteen thousand, eight hundred fifty-nine".