63478874 has 4 divisors (see below), whose sum is σ = 95218314. Its totient is φ = 31739436.

The previous prime is 63478861. The next prime is 63478903. The reversal of 63478874 is 47887436.

63478874 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.

It can be written as a sum of positive squares in only one way, i.e., 52635025 + 10843849 = 7255^2 + 3293^2 .

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 as a sum of consecutive naturals, namely, 15869717 + ... + 15869720.

Almost surely, 2^63478874 is an apocalyptic number.

63478874 is a deficient number, since it is larger than the sum of its proper divisors (31739440).

63478874 is a wasteful number, since it uses less digits than its factorization.

63478874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31739439.

The product of its digits is 903168, while the sum is 47.

The square root of 63478874 is about 7967.3630518510. The cubic root of 63478874 is about 398.9113606823.

The spelling of 63478874 in words is "sixty-three million, four hundred seventy-eight thousand, eight hundred seventy-four".