63969379 has 2 divisors, whose sum is σ = 63969380. Its totient is φ = 63969378.

The previous prime is 63969359. The next prime is 63969383. The reversal of 63969379 is 97396936.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 63969379 - 2¹⁹ = 63445091 is a prime.

It is not a weakly prime, because it can be changed into another prime (63969319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31984689 + 31984690.

It is an arithmetic number, because the mean of its divisors is an integer number (31984690).

Almost surely, 2^63969379 is an apocalyptic number.

63969379 is a deficient number, since it is larger than the sum of its proper divisors (1).

63969379 is an equidigital number, since it uses as much as digits as its factorization.

63969379 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1653372, while the sum is 52.

The square root of 63969379 is about 7998.0859585278. The cubic root of 63969379 is about 399.9361960732.

The spelling of 63969379 in words is "sixty-three million, nine hundred sixty-nine thousand, three hundred seventy-nine".