63475994 has 8 divisors (see below), whose sum is σ = 100814868. Its totient is φ = 29871040.

The previous prime is 63475981. The next prime is 63476029. The reversal of 63475994 is 49957436.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 55279225 + 8196769 = 7435^2 + 2863^2 .

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

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 933437 + ... + 933504.

Almost surely, 2^63475994 is an apocalyptic number.

63475994 is a deficient number, since it is larger than the sum of its proper divisors (37338874).

63475994 is a wasteful number, since it uses less digits than its factorization.

63475994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1866960.

The product of its digits is 816480, while the sum is 47.

The square root of 63475994 is about 7967.1823124615. The cubic root of 63475994 is about 398.9053277981.

The spelling of 63475994 in words is "sixty-three million, four hundred seventy-five thousand, nine hundred ninety-four".