63864682 has 64 divisors (see below), whose sum is σ = 121492224. Its totient is φ = 24560640.

The previous prime is 63864677. The next prime is 63864683. The reversal of 63864682 is 28646836.

It is a super-2 number, since 2×63864682² = 8157395213922248, which contains 22 as substring.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (63864683) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 769413 + ... + 769495.

It is an arithmetic number, because the mean of its divisors is an integer number (1898316).

Almost surely, 2^63864682 is an apocalyptic number.

63864682 is a deficient number, since it is larger than the sum of its proper divisors (57627542).

63864682 is a wasteful number, since it uses less digits than its factorization.

63864682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223.

The product of its digits is 331776, while the sum is 43.

The square root of 63864682 is about 7991.5381498182. The cubic root of 63864682 is about 399.7178885796.

It can be divided in two parts, 63864 and 682, that added together give a palindrome (64546).

The spelling of 63864682 in words is "sixty-three million, eight hundred sixty-four thousand, six hundred eighty-two".