916277891 has 2 divisors, whose sum is σ = 916277892. Its totient is φ = 916277890.

The previous prime is 916277867. The next prime is 916277897. The reversal of 916277891 is 198772619.

916277891 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-916277891 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (916277897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 458138945 + 458138946.

It is an arithmetic number, because the mean of its divisors is an integer number (458138946).

Almost surely, 2^916277891 is an apocalyptic number.

916277891 is a deficient number, since it is larger than the sum of its proper divisors (1).

916277891 is an equidigital number, since it uses as much as digits as its factorization.

916277891 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 381024, while the sum is 50.

The square root of 916277891 is about 30270.0824412488. The cubic root of 916277891 is about 971.2754296128.

The spelling of 916277891 in words is "nine hundred sixteen million, two hundred seventy-seven thousand, eight hundred ninety-one".