63194986 has 4 divisors (see below), whose sum is σ = 94792482. Its totient is φ = 31597492.

The previous prime is 63194977. The next prime is 63195017. The reversal of 63194986 is 68949136.

63194986 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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., 37884025 + 25310961 = 6155^2 + 5031^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15798745 + ... + 15798748.

Almost surely, 2^63194986 is an apocalyptic number.

63194986 is a deficient number, since it is larger than the sum of its proper divisors (31597496).

63194986 is a wasteful number, since it uses less digits than its factorization.

63194986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31597495.

The product of its digits is 279936, while the sum is 46.

The square root of 63194986 is about 7949.5274073369. The cubic root of 63194986 is about 398.3158061805.

The spelling of 63194986 in words is "sixty-three million, one hundred ninety-four thousand, nine hundred eighty-six".