63221982 has 8 divisors (see below), whose sum is σ = 126443976. Its totient is φ = 21073992.

The previous prime is 63221969. The next prime is 63221999. The reversal of 63221982 is 28912236.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

63221982 is an admirable number.

It is a super-3 number, since 3×63221982³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5268493 + ... + 5268504.

It is an arithmetic number, because the mean of its divisors is an integer number (15805497).

Almost surely, 2^63221982 is an apocalyptic number.

63221982 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

63221982 is a wasteful number, since it uses less digits than its factorization.

63221982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10537002.

The product of its digits is 10368, while the sum is 33.

The square root of 63221982 is about 7951.2251886109. The cubic root of 63221982 is about 398.3725163901.

The spelling of 63221982 in words is "sixty-three million, two hundred twenty-one thousand, nine hundred eighty-two".