63995703 has 4 divisors (see below), whose sum is σ = 85327608. Its totient is φ = 42663800.

The previous prime is 63995677. The next prime is 63995719. The reversal of 63995703 is 30759936.

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 63995703 - 2⁵ = 63995671 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63995773) 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, 10665948 + ... + 10665953.

It is an arithmetic number, because the mean of its divisors is an integer number (21331902).

Almost surely, 2^63995703 is an apocalyptic number.

63995703 is a deficient number, since it is larger than the sum of its proper divisors (21331905).

63995703 is a wasteful number, since it uses less digits than its factorization.

63995703 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21331904.

The product of its (nonzero) digits is 153090, while the sum is 42.

The square root of 63995703 is about 7999.7314329920. The cubic root of 63995703 is about 399.9910477163.

The spelling of 63995703 in words is "sixty-three million, nine hundred ninety-five thousand, seven hundred three".