63938233 has 2 divisors, whose sum is σ = 63938234. Its totient is φ = 63938232.

The previous prime is 63938227. The next prime is 63938261. The reversal of 63938233 is 33283936.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33500944 + 30437289 = 5788^2 + 5517^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63938233 is a prime.

It is equal to p_3781666 and since 63938233 and 3781666 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 63938192 and 63938201.

It is not a weakly prime, because it can be changed into another prime (63935233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31969116 + 31969117.

It is an arithmetic number, because the mean of its divisors is an integer number (31969117).

Almost surely, 2^63938233 is an apocalyptic number.

It is an amenable number.

63938233 is a deficient number, since it is larger than the sum of its proper divisors (1).

63938233 is an equidigital number, since it uses as much as digits as its factorization.

63938233 is an evil number, because the sum of its binary digits is even.

The product of its digits is 69984, while the sum is 37.

The square root of 63938233 is about 7996.1386306142. The cubic root of 63938233 is about 399.8712773306.

The spelling of 63938233 in words is "sixty-three million, nine hundred thirty-eight thousand, two hundred thirty-three".