63921382 has 24 divisors (see below), whose sum is σ = 111895560. Its totient is φ = 27306720.

The previous prime is 63921373. The next prime is 63921409. The reversal of 63921382 is 28312936.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 36282 + ... + 38002.

It is an arithmetic number, because the mean of its divisors is an integer number (4662315).

Almost surely, 2^63921382 is an apocalyptic number.

63921382 is a deficient number, since it is larger than the sum of its proper divisors (47974178).

63921382 is a wasteful number, since it uses less digits than its factorization.

63921382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2116 (or 2109 counting only the distinct ones).

The product of its digits is 15552, while the sum is 34.

The square root of 63921382 is about 7995.0848650906. The cubic root of 63921382 is about 399.8361453883.

The spelling of 63921382 in words is "sixty-three million, nine hundred twenty-one thousand, three hundred eighty-two".