63475993 has 8 divisors (see below), whose sum is σ = 73418688. Its totient is φ = 53751984.

The previous prime is 63475981. The next prime is 63476029. The reversal of 63475993 is 39957436.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 63475993 - 2⁹ = 63475481 is a prime.

It is not an unprimeable number, because it can be changed into a prime (63475393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54046 + ... + 55207.

It is an arithmetic number, because the mean of its divisors is an integer number (9177336).

Almost surely, 2^63475993 is an apocalyptic number.

It is an amenable number.

63475993 is a deficient number, since it is larger than the sum of its proper divisors (9942695).

63475993 is a wasteful number, since it uses less digits than its factorization.

63475993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109343.

The product of its digits is 612360, while the sum is 46.

The square root of 63475993 is about 7967.1822497041. The cubic root of 63475993 is about 398.9053257033.

The spelling of 63475993 in words is "sixty-three million, four hundred seventy-five thousand, nine hundred ninety-three".