63881222 has 4 divisors (see below), whose sum is σ = 95821836. Its totient is φ = 31940610.

The previous prime is 63881221. The next prime is 63881227. The reversal of 63881222 is 22218836.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63881221) 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 as a sum of consecutive naturals, namely, 15970304 + ... + 15970307.

It is an arithmetic number, because the mean of its divisors is an integer number (23955459).

Almost surely, 2^63881222 is an apocalyptic number.

63881222 is a deficient number, since it is larger than the sum of its proper divisors (31940614).

63881222 is a wasteful number, since it uses less digits than its factorization.

63881222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31940613.

The product of its digits is 9216, while the sum is 32.

The square root of 63881222 is about 7992.5729274120. The cubic root of 63881222 is about 399.7523925914.

The spelling of 63881222 in words is "sixty-three million, eight hundred eighty-one thousand, two hundred twenty-two".