64223982 has 16 divisors (see below), whose sum is σ = 142720080. Its totient is φ = 21407976.

The previous prime is 64223959. The next prime is 64223987. The reversal of 64223982 is 28932246.

64223982 is a `hidden beast` number, since 642 + 2 + 3 + 9 + 8 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64223987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 594613 + ... + 594720.

It is an arithmetic number, because the mean of its divisors is an integer number (8920005).

Almost surely, 2^64223982 is an apocalyptic number.

64223982 is an abundant number, since it is smaller than the sum of its proper divisors (78496098).

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

64223982 is a wasteful number, since it uses less digits than its factorization.

64223982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1189344 (or 1189338 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 64223982 is about 8013.9866483542. The cubic root of 64223982 is about 400.4660858656.

It can be divided in two parts, 6422 and 3982, that added together give a square (10404 = 102²).

The spelling of 64223982 in words is "sixty-four million, two hundred twenty-three thousand, nine hundred eighty-two".