63896843 has 4 divisors (see below), whose sum is σ = 64053480. Its totient is φ = 63740208.

The previous prime is 63896821. The next prime is 63896849. The reversal of 63896843 is 34869836.

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

It is a cyclic number.

It is not a de Polignac number, because 63896843 - 2¹⁴ = 63880459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63896849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77705 + ... + 78522.

It is an arithmetic number, because the mean of its divisors is an integer number (16013370).

Almost surely, 2^63896843 is an apocalyptic number.

63896843 is a deficient number, since it is larger than the sum of its proper divisors (156637).

63896843 is a wasteful number, since it uses less digits than its factorization.

63896843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156636.

The product of its digits is 746496, while the sum is 47.

The square root of 63896843 is about 7993.5500874142. The cubic root of 63896843 is about 399.7849740136.

The spelling of 63896843 in words is "sixty-three million, eight hundred ninety-six thousand, eight hundred forty-three".