63363791 has 2 divisors, whose sum is σ = 63363792. Its totient is φ = 63363790.

The previous prime is 63363761. The next prime is 63363799. The reversal of 63363791 is 19736336.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63363791 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63363799) 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, 31681895 + 31681896.

It is an arithmetic number, because the mean of its divisors is an integer number (31681896).

Almost surely, 2^63363791 is an apocalyptic number.

63363791 is a deficient number, since it is larger than the sum of its proper divisors (1).

63363791 is an equidigital number, since it uses as much as digits as its factorization.

63363791 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 61236, while the sum is 38.

The square root of 63363791 is about 7960.1376244384. The cubic root of 63363791 is about 398.6701482186.

The spelling of 63363791 in words is "sixty-three million, three hundred sixty-three thousand, seven hundred ninety-one".