63750993 has 4 divisors (see below), whose sum is σ = 85001328. Its totient is φ = 42500660.

The previous prime is 63750979. The next prime is 63751013. The reversal of 63750993 is 39905736.

63750993 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 63750993 - 2⁴ = 63750977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (63750293) 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 3 ways as a sum of consecutive naturals, for example, 10625163 + ... + 10625168.

It is an arithmetic number, because the mean of its divisors is an integer number (21250332).

Almost surely, 2^63750993 is an apocalyptic number.

It is an amenable number.

63750993 is a deficient number, since it is larger than the sum of its proper divisors (21250335).

63750993 is a wasteful number, since it uses less digits than its factorization.

63750993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21250334.

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

The square root of 63750993 is about 7984.4218951656. The cubic root of 63750993 is about 399.4805611669.

The spelling of 63750993 in words is "sixty-three million, seven hundred fifty thousand, nine hundred ninety-three".