63936393 has 16 divisors (see below), whose sum is σ = 87087936. Its totient is φ = 41713920.

The previous prime is 63936377. The next prime is 63936413. The reversal of 63936393 is 39363936.

It is not a de Polignac number, because 63936393 - 2⁴ = 63936377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (63936373) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28938 + ... + 31068.

It is an arithmetic number, because the mean of its divisors is an integer number (5442996).

Almost surely, 2^63936393 is an apocalyptic number.

It is an amenable number.

63936393 is a deficient number, since it is larger than the sum of its proper divisors (23151543).

63936393 is a wasteful number, since it uses less digits than its factorization.

63936393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2344.

The product of its digits is 236196, while the sum is 42.

The square root of 63936393 is about 7996.0235742524. The cubic root of 63936393 is about 399.8674414921.

The spelling of 63936393 in words is "sixty-three million, nine hundred thirty-six thousand, three hundred ninety-three".