914786891 has 2 divisors, whose sum is σ = 914786892. Its totient is φ = 914786890.

The previous prime is 914786857. The next prime is 914786893. The reversal of 914786891 is 198687419.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-914786891 is a prime.

Together with 914786893, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (914786893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 457393445 + 457393446.

It is an arithmetic number, because the mean of its divisors is an integer number (457393446).

Almost surely, 2^914786891 is an apocalyptic number.

914786891 is a deficient number, since it is larger than the sum of its proper divisors (1).

914786891 is an equidigital number, since it uses as much as digits as its factorization.

914786891 is an evil number, because the sum of its binary digits is even.

The product of its digits is 870912, while the sum is 53.

The square root of 914786891 is about 30245.4441362662. Note that the first 3 decimals coincide. The cubic root of 914786891 is about 970.7483122771.

The spelling of 914786891 in words is "nine hundred fourteen million, seven hundred eighty-six thousand, eight hundred ninety-one".