63388379 has 2 divisors, whose sum is σ = 63388380. Its totient is φ = 63388378.

The previous prime is 63388343. The next prime is 63388387. The reversal of 63388379 is 97388336.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63388379 is a prime.

It is not a weakly prime, because it can be changed into another prime (63388399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31694189 + 31694190.

It is an arithmetic number, because the mean of its divisors is an integer number (31694190).

Almost surely, 2^63388379 is an apocalyptic number.

63388379 is a deficient number, since it is larger than the sum of its proper divisors (1).

63388379 is an equidigital number, since it uses as much as digits as its factorization.

63388379 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 653184, while the sum is 47.

The square root of 63388379 is about 7961.6819202980. The cubic root of 63388379 is about 398.7217088644.

The spelling of 63388379 in words is "sixty-three million, three hundred eighty-eight thousand, three hundred seventy-nine".