63456406 has 16 divisors (see below), whose sum is σ = 105278544. Its totient is φ = 28495584.

The previous prime is 63456401. The next prime is 63456413. The reversal of 63456406 is 60465436.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63456401) 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 in 7 ways as a sum of consecutive naturals, for example, 32020 + ... + 33943.

It is an arithmetic number, because the mean of its divisors is an integer number (6579909).

Almost surely, 2^63456406 is an apocalyptic number.

63456406 is a deficient number, since it is larger than the sum of its proper divisors (41822138).

63456406 is a wasteful number, since it uses less digits than its factorization.

63456406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66015.

The product of its (nonzero) digits is 51840, while the sum is 34.

The square root of 63456406 is about 7965.9529247919. The cubic root of 63456406 is about 398.8642909643.

The spelling of 63456406 in words is "sixty-three million, four hundred fifty-six thousand, four hundred six".