214287893 has 2 divisors, whose sum is σ = 214287894. Its totient is φ = 214287892.

The previous prime is 214287863. The next prime is 214287949. The reversal of 214287893 is 398782412.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 173238244 + 41049649 = 13162^2 + 6407^2 .

It is a cyclic number.

It is not a de Polignac number, because 214287893 - 2⁸ = 214287637 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (214287863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107143946 + 107143947.

It is an arithmetic number, because the mean of its divisors is an integer number (107143947).

Almost surely, 2^214287893 is an apocalyptic number.

It is an amenable number.

214287893 is a deficient number, since it is larger than the sum of its proper divisors (1).

214287893 is an equidigital number, since it uses as much as digits as its factorization.

214287893 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 193536, while the sum is 44.

The square root of 214287893 is about 14638.5755112989. The cubic root of 214287893 is about 598.4105086545.

The spelling of 214287893 in words is "two hundred fourteen million, two hundred eighty-seven thousand, eight hundred ninety-three".