63323213 has 2 divisors, whose sum is σ = 63323214. Its totient is φ = 63323212.

The previous prime is 63323207. The next prime is 63323237. The reversal of 63323213 is 31232336.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35307364 + 28015849 = 5942^2 + 5293^2 .

It is a cyclic number.

It is not a de Polignac number, because 63323213 - 2⁸ = 63322957 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63326213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31661606 + 31661607.

It is an arithmetic number, because the mean of its divisors is an integer number (31661607).

Almost surely, 2^63323213 is an apocalyptic number.

It is an amenable number.

63323213 is a deficient number, since it is larger than the sum of its proper divisors (1).

63323213 is an equidigital number, since it uses as much as digits as its factorization.

63323213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1944, while the sum is 23.

The square root of 63323213 is about 7957.5883909637. The cubic root of 63323213 is about 398.5850276183.

Adding to 63323213 its reverse (31232336), we get a palindrome (94555549).

It can be divided in two parts, 63323 and 213, that added together give a palindrome (63536).

The spelling of 63323213 in words is "sixty-three million, three hundred twenty-three thousand, two hundred thirteen".