63959648 has 12 divisors (see below), whose sum is σ = 125920620. Its totient is φ = 31979808.

The previous prime is 63959641. The next prime is 63959653. The reversal of 63959648 is 84695936.

It is a junction number, because it is equal to n+sod(n) for n = 63959596 and 63959605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63959641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 999338 + ... + 999401.

It is an arithmetic number, because the mean of its divisors is an integer number (10493385).

Almost surely, 2^63959648 is an apocalyptic number.

It is an amenable number.

63959648 is a deficient number, since it is larger than the sum of its proper divisors (61960972).

63959648 is a wasteful number, since it uses less digits than its factorization.

63959648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1998749 (or 1998741 counting only the distinct ones).

The product of its digits is 1399680, while the sum is 50.

The square root of 63959648 is about 7997.4776023444. The cubic root of 63959648 is about 399.9159156591.

The spelling of 63959648 in words is "sixty-three million, nine hundred fifty-nine thousand, six hundred forty-eight".