63478994 has 8 divisors (see below), whose sum is σ = 95338620. Its totient is φ = 31699456.

The previous prime is 63478967. The next prime is 63479023. The reversal of 63478994 is 49987436.

63478994 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 62995969 + 483025 = 7937^2 + 695^2 .

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 (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17999 + ... + 21234.

Almost surely, 2^63478994 is an apocalyptic number.

63478994 is a deficient number, since it is larger than the sum of its proper divisors (31859626).

63478994 is a wasteful number, since it uses less digits than its factorization.

63478994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40044.

The product of its digits is 1306368, while the sum is 50.

The square root of 63478994 is about 7967.3705825699. The cubic root of 63478994 is about 398.9116120485.

The spelling of 63478994 in words is "sixty-three million, four hundred seventy-eight thousand, nine hundred ninety-four".