63897946 has 16 divisors (see below), whose sum is σ = 109642176. Its totient is φ = 27359136.

The previous prime is 63897943. The next prime is 63897947. The reversal of 63897946 is 64979836.

63897946 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 63897893 and 63897902.

It is not an unprimeable number, because it can be changed into a prime (63897943) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 26670 + ... + 28966.

It is an arithmetic number, because the mean of its divisors is an integer number (6852636).

Almost surely, 2^63897946 is an apocalyptic number.

63897946 is a deficient number, since it is larger than the sum of its proper divisors (45744230).

63897946 is a wasteful number, since it uses less digits than its factorization.

63897946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4293.

The product of its digits is 1959552, while the sum is 52.

The square root of 63897946 is about 7993.6190802414. The cubic root of 63897946 is about 399.7872743896.

The spelling of 63897946 in words is "sixty-three million, eight hundred ninety-seven thousand, nine hundred forty-six".