214421329 has 2 divisors, whose sum is σ = 214421330. Its totient is φ = 214421328.

The previous prime is 214421321. The next prime is 214421351. The reversal of 214421329 is 923124412.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 183873600 + 30547729 = 13560^2 + 5527^2 .

It is a cyclic number.

It is not a de Polignac number, because 214421329 - 2³ = 214421321 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 214421297 and 214421306.

It is not a weakly prime, because it can be changed into another prime (214421321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107210664 + 107210665.

It is an arithmetic number, because the mean of its divisors is an integer number (107210665).

Almost surely, 2^214421329 is an apocalyptic number.

It is an amenable number.

214421329 is a deficient number, since it is larger than the sum of its proper divisors (1).

214421329 is an equidigital number, since it uses as much as digits as its factorization.

214421329 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3456, while the sum is 28.

The square root of 214421329 is about 14643.1324859130. The cubic root of 214421329 is about 598.5346919597.

The spelling of 214421329 in words is "two hundred fourteen million, four hundred twenty-one thousand, three hundred twenty-nine".