63986322 has 64 divisors (see below), whose sum is σ = 140507136. Its totient is φ = 19367040.

The previous prime is 63986297. The next prime is 63986323. The reversal of 63986322 is 22368936.

It is not an unprimeable number, because it can be changed into a prime (63986323) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 243163 + ... + 243425.

It is an arithmetic number, because the mean of its divisors is an integer number (2195424).

Almost surely, 2^63986322 is an apocalyptic number.

63986322 is an abundant number, since it is smaller than the sum of its proper divisors (76520814).

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

63986322 is a wasteful number, since it uses less digits than its factorization.

63986322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375.

The product of its digits is 93312, while the sum is 39.

The square root of 63986322 is about 7999.1450793194. The cubic root of 63986322 is about 399.9715021364.

It can be divided in two parts, 6398 and 6322, that added together give a triangular number (12720 = T₁₅₉).

The spelling of 63986322 in words is "sixty-three million, nine hundred eighty-six thousand, three hundred twenty-two".