63968959 has 2 divisors, whose sum is σ = 63968960. Its totient is φ = 63968958.

The previous prime is 63968923. The next prime is 63968963. The reversal of 63968959 is 95986936.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 63968959 - 2⁷ = 63968831 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63960959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31984479 + 31984480.

It is an arithmetic number, because the mean of its divisors is an integer number (31984480).

Almost surely, 2^63968959 is an apocalyptic number.

63968959 is a deficient number, since it is larger than the sum of its proper divisors (1).

63968959 is an equidigital number, since it uses as much as digits as its factorization.

63968959 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3149280, while the sum is 55.

The square root of 63968959 is about 7998.0597022028. The cubic root of 63968959 is about 399.9353207921.

The spelling of 63968959 in words is "sixty-three million, nine hundred sixty-eight thousand, nine hundred fifty-nine".