63214321 has 2 divisors, whose sum is σ = 63214322. Its totient is φ = 63214320.

The previous prime is 63214303. The next prime is 63214331. The reversal of 63214321 is 12341236.

63214321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 56250000 + 6964321 = 7500^2 + 2639^2 .

It is a cyclic number.

It is not a de Polignac number, because 63214321 - 2⁹ = 63213809 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 63214292 and 63214301.

It is not a weakly prime, because it can be changed into another prime (63214331) 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, 31607160 + 31607161.

It is an arithmetic number, because the mean of its divisors is an integer number (31607161).

Almost surely, 2^63214321 is an apocalyptic number.

It is an amenable number.

63214321 is a deficient number, since it is larger than the sum of its proper divisors (1).

63214321 is an equidigital number, since it uses as much as digits as its factorization.

63214321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 864, while the sum is 22.

The square root of 63214321 is about 7950.7434243598. The cubic root of 63214321 is about 398.3564246499.

Adding to 63214321 its reverse (12341236), we get a palindrome (75555557).

The spelling of 63214321 in words is "sixty-three million, two hundred fourteen thousand, three hundred twenty-one".