214484309 has 4 divisors (see below), whose sum is σ = 230983116. Its totient is φ = 197985504.

The previous prime is 214484297. The next prime is 214484321. The reversal of 214484309 is 903484412.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (214484297) and next prime (214484321).

It can be written as a sum of positive squares in 2 ways, for example, as 134328100 + 80156209 = 11590^2 + 8953^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-214484309 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214484329) 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 in 3 ways as a sum of consecutive naturals, for example, 8249384 + ... + 8249409.

It is an arithmetic number, because the mean of its divisors is an integer number (57745779).

Almost surely, 2^214484309 is an apocalyptic number.

It is an amenable number.

214484309 is a deficient number, since it is larger than the sum of its proper divisors (16498807).

214484309 is a wasteful number, since it uses less digits than its factorization.

214484309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16498806.

The product of its (nonzero) digits is 27648, while the sum is 35.

The square root of 214484309 is about 14645.2828241724. The cubic root of 214484309 is about 598.5932869154.

The spelling of 214484309 in words is "two hundred fourteen million, four hundred eighty-four thousand, three hundred nine".