916261 has 2 divisors, whose sum is σ = 916262. Its totient is φ = 916260.

The previous prime is 916259. The next prime is 916273. The reversal of 916261 is 162619.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 591361 + 324900 = 769^2 + 570^2 .

It is a cyclic number.

It is not a de Polignac number, because 916261 - 2¹ = 916259 is a prime.

Together with 916259, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (916291) by changing a digit.

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, 458130 + 458131.

It is an arithmetic number, because the mean of its divisors is an integer number (458131).

2⁹¹⁶²⁶¹ is an apocalyptic number.

It is an amenable number.

916261 is a deficient number, since it is larger than the sum of its proper divisors (1).

916261 is an equidigital number, since it uses as much as digits as its factorization.

916261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 648, while the sum is 25.

The square root of 916261 is about 957.2152318053. The cubic root of 916261 is about 97.1269461295.

The spelling of 916261 in words is "nine hundred sixteen thousand, two hundred sixty-one".