214508989 has 2 divisors, whose sum is σ = 214508990. Its totient is φ = 214508988.

The previous prime is 214508977. The next prime is 214509013. The reversal of 214508989 is 989805412.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 175032900 + 39476089 = 13230^2 + 6283^2 .

It is a cyclic number.

It is not a de Polignac number, because 214508989 - 2¹⁵ = 214476221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (214506989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107254494 + 107254495.

It is an arithmetic number, because the mean of its divisors is an integer number (107254495).

Almost surely, 2^214508989 is an apocalyptic number.

It is an amenable number.

214508989 is a deficient number, since it is larger than the sum of its proper divisors (1).

214508989 is an equidigital number, since it uses as much as digits as its factorization.

214508989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 207360, while the sum is 46.

The square root of 214508989 is about 14646.1253920619. The cubic root of 214508989 is about 598.6162454180.

The spelling of 214508989 in words is "two hundred fourteen million, five hundred eight thousand, nine hundred eighty-nine".