214367891 has 2 divisors, whose sum is σ = 214367892. Its totient is φ = 214367890.

The previous prime is 214367887. The next prime is 214367897. The reversal of 214367891 is 198763412.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 214367891 - 2² = 214367887 is a prime.

It is not a weakly prime, because it can be changed into another prime (214367897) 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, 107183945 + 107183946.

It is an arithmetic number, because the mean of its divisors is an integer number (107183946).

Almost surely, 2^214367891 is an apocalyptic number.

214367891 is a deficient number, since it is larger than the sum of its proper divisors (1).

214367891 is an equidigital number, since it uses as much as digits as its factorization.

214367891 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72576, while the sum is 41.

The square root of 214367891 is about 14641.3076943284. The cubic root of 214367891 is about 598.4849656343.

The spelling of 214367891 in words is "two hundred fourteen million, three hundred sixty-seven thousand, eight hundred ninety-one".