916538911 has 4 divisors (see below), whose sum is σ = 933832152. Its totient is φ = 899245672.

The previous prime is 916538899. The next prime is 916538923. The reversal of 916538911 is 119835619.

916538911 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 119835619 = 1693 ⋅70783.

It is an interprime number because it is at equal distance from previous prime (916538899) and next prime (916538923).

It is a cyclic number.

It is not a de Polignac number, because 916538911 - 2¹⁹ = 916014623 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (916538111) 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, 8646541 + ... + 8646646.

It is an arithmetic number, because the mean of its divisors is an integer number (233458038).

Almost surely, 2^916538911 is an apocalyptic number.

916538911 is a deficient number, since it is larger than the sum of its proper divisors (17293241).

916538911 is a wasteful number, since it uses less digits than its factorization.

916538911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17293240.

The product of its digits is 58320, while the sum is 43.

The square root of 916538911 is about 30274.3936520618. The cubic root of 916538911 is about 971.3676499044.

The spelling of 916538911 in words is "nine hundred sixteen million, five hundred thirty-eight thousand, nine hundred eleven".