916459391 has 2 divisors, whose sum is σ = 916459392. Its totient is φ = 916459390.

The previous prime is 916459367. The next prime is 916459441. The reversal of 916459391 is 193954619.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (193954619) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-916459391 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (916459321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 458229695 + 458229696.

It is an arithmetic number, because the mean of its divisors is an integer number (458229696).

Almost surely, 2^916459391 is an apocalyptic number.

916459391 is a deficient number, since it is larger than the sum of its proper divisors (1).

916459391 is an equidigital number, since it uses as much as digits as its factorization.

916459391 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 262440, while the sum is 47.

The square root of 916459391 is about 30273.0803024734. The cubic root of 916459391 is about 971.3395567565.

The spelling of 916459391 in words is "nine hundred sixteen million, four hundred fifty-nine thousand, three hundred ninety-one".