63782866 has 16 divisors (see below), whose sum is σ = 109454400. Its totient is φ = 27307440.

The previous prime is 63782843. The next prime is 63782869. The reversal of 63782866 is 66828736.

It is a pancake number, because a pancake can be divided into 63782866 parts by 11294 straight cuts.

It is not an unprimeable number, because it can be changed into a prime (63782869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17685 + ... + 20983.

It is an arithmetic number, because the mean of its divisors is an integer number (6840900).

Almost surely, 2^63782866 is an apocalyptic number.

63782866 is a deficient number, since it is larger than the sum of its proper divisors (45671534).

63782866 is a wasteful number, since it uses less digits than its factorization.

63782866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4689.

The product of its digits is 580608, while the sum is 46.

The square root of 63782866 is about 7986.4175948920. The cubic root of 63782866 is about 399.5471249540.

The spelling of 63782866 in words is "sixty-three million, seven hundred eighty-two thousand, eight hundred sixty-six".