63441986 has 4 divisors (see below), whose sum is σ = 95162982. Its totient is φ = 31720992.

The previous prime is 63441971. The next prime is 63442009. The reversal of 63441986 is 68914436.

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

It can be written as a sum of positive squares in only one way, i.e., 57532225 + 5909761 = 7585^2 + 2431^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15860495 + ... + 15860498.

Almost surely, 2^63441986 is an apocalyptic number.

63441986 is a deficient number, since it is larger than the sum of its proper divisors (31720996).

63441986 is a wasteful number, since it uses less digits than its factorization.

63441986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31720995.

The product of its digits is 124416, while the sum is 41.

The square root of 63441986 is about 7965.0477713571. The cubic root of 63441986 is about 398.8340756865.

The spelling of 63441986 in words is "sixty-three million, four hundred forty-one thousand, nine hundred eighty-six".