63994105 has 32 divisors (see below), whose sum is σ = 90908928. Its totient is φ = 42336000.

The previous prime is 63994093. The next prime is 63994121. The reversal of 63994105 is 50149936.

It is not a de Polignac number, because 63994105 - 2¹⁹ = 63469817 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 151795 + ... + 152215.

It is an arithmetic number, because the mean of its divisors is an integer number (2840904).

Almost surely, 2^63994105 is an apocalyptic number.

It is an amenable number.

63994105 is a deficient number, since it is larger than the sum of its proper divisors (26914823).

63994105 is a wasteful number, since it uses less digits than its factorization.

63994105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 577.

The product of its (nonzero) digits is 29160, while the sum is 37.

The square root of 63994105 is about 7999.6315540155. The cubic root of 63994105 is about 399.9877183729.

The spelling of 63994105 in words is "sixty-three million, nine hundred ninety-four thousand, one hundred five".