14232821 has 2 divisors, whose sum is σ = 14232822. Its totient is φ = 14232820.

The previous prime is 14232817. The next prime is 14232853. The reversal of 14232821 is 12823241.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13608721 + 624100 = 3689^2 + 790^2 .

It is an emirp because it is prime and its reverse (12823241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 14232821 - 2² = 14232817 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14232811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7116410 + 7116411.

It is an arithmetic number, because the mean of its divisors is an integer number (7116411).

Almost surely, 2^14232821 is an apocalyptic number.

It is an amenable number.

14232821 is a deficient number, since it is larger than the sum of its proper divisors (1).

14232821 is an equidigital number, since it uses as much as digits as its factorization.

14232821 is an evil number, because the sum of its binary digits is even.

The product of its digits is 768, while the sum is 23.

The square root of 14232821 is about 3772.6411173076. The cubic root of 14232821 is about 242.3429159459.

The spelling of 14232821 in words is "fourteen million, two hundred thirty-two thousand, eight hundred twenty-one".