314563891 has 2 divisors, whose sum is σ = 314563892. Its totient is φ = 314563890.

The previous prime is 314563889. The next prime is 314563901. The reversal of 314563891 is 198365413.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 314563891 - 2¹ = 314563889 is a prime.

Together with 314563889, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (314563871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157281945 + 157281946.

It is an arithmetic number, because the mean of its divisors is an integer number (157281946).

Almost surely, 2^314563891 is an apocalyptic number.

314563891 is a deficient number, since it is larger than the sum of its proper divisors (1).

314563891 is an equidigital number, since it uses as much as digits as its factorization.

314563891 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 77760, while the sum is 40.

The square root of 314563891 is about 17735.9491147218. The cubic root of 314563891 is about 680.0950638433.

The spelling of 314563891 in words is "three hundred fourteen million, five hundred sixty-three thousand, eight hundred ninety-one".