63966477 has 8 divisors (see below), whose sum is σ = 85355200. Its totient is φ = 42611040.

The previous prime is 63966467. The next prime is 63966493. The reversal of 63966477 is 77466936.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 63966477 - 2⁷ = 63966349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63966457) 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, 3424 + ... + 11817.

It is an arithmetic number, because the mean of its divisors is an integer number (10669400).

Almost surely, 2^63966477 is an apocalyptic number.

It is an amenable number.

63966477 is a deficient number, since it is larger than the sum of its proper divisors (21388723).

63966477 is a wasteful number, since it uses less digits than its factorization.

63966477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16643.

The product of its digits is 1143072, while the sum is 48.

The square root of 63966477 is about 7997.9045380650. The cubic root of 63966477 is about 399.9301482192.

The spelling of 63966477 in words is "sixty-three million, nine hundred sixty-six thousand, four hundred seventy-seven".