214201987 has 2 divisors, whose sum is σ = 214201988. Its totient is φ = 214201986.

The previous prime is 214201979. The next prime is 214201997. The reversal of 214201987 is 789102412.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 214201987 - 2³ = 214201979 is a prime.

It is not a weakly prime, because it can be changed into another prime (214201937) 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, 107100993 + 107100994.

It is an arithmetic number, because the mean of its divisors is an integer number (107100994).

Almost surely, 2^214201987 is an apocalyptic number.

214201987 is a deficient number, since it is larger than the sum of its proper divisors (1).

214201987 is an equidigital number, since it uses as much as digits as its factorization.

214201987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 214201987 is about 14635.6409835716. The cubic root of 214201987 is about 598.3305322522.

The spelling of 214201987 in words is "two hundred fourteen million, two hundred one thousand, nine hundred eighty-seven".