63982819 has 4 divisors (see below), whose sum is σ = 65190096. Its totient is φ = 62775544.

The previous prime is 63982801. The next prime is 63982847. The reversal of 63982819 is 91828936.

63982819 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 63982819 - 2⁷ = 63982691 is a prime.

It is a super-2 number, since 2×63982819² = 8187602254373522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63902819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 603559 + ... + 603664.

It is an arithmetic number, because the mean of its divisors is an integer number (16297524).

Almost surely, 2^63982819 is an apocalyptic number.

63982819 is a deficient number, since it is larger than the sum of its proper divisors (1207277).

63982819 is a wasteful number, since it uses less digits than its factorization.

63982819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1207276.

The product of its digits is 186624, while the sum is 46.

The square root of 63982819 is about 7998.9261154232. The cubic root of 63982819 is about 399.9642030465.

The spelling of 63982819 in words is "sixty-three million, nine hundred eighty-two thousand, eight hundred nineteen".