63957911 has 2 divisors, whose sum is σ = 63957912. Its totient is φ = 63957910.

The previous prime is 63957889. The next prime is 63957967. The reversal of 63957911 is 11975936.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 63957911 - 2¹⁸ = 63695767 is a prime.

It is a super-2 number, since 2×63957911² = 8181228758967842, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63957011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31978955 + 31978956.

It is an arithmetic number, because the mean of its divisors is an integer number (31978956).

Almost surely, 2^63957911 is an apocalyptic number.

63957911 is a deficient number, since it is larger than the sum of its proper divisors (1).

63957911 is an equidigital number, since it uses as much as digits as its factorization.

63957911 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 51030, while the sum is 41.

The square root of 63957911 is about 7997.3690048665. The cubic root of 63957911 is about 399.9122953545.

The spelling of 63957911 in words is "sixty-three million, nine hundred fifty-seven thousand, nine hundred eleven".