4947478 has 8 divisors (see below), whose sum is σ = 7455168. Its totient is φ = 2462424.

The previous prime is 4947463. The next prime is 4947499. The reversal of 4947478 is 8747494.

It is a happy number.

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

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

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, 5101 + ... + 5992.

It is an arithmetic number, because the mean of its divisors is an integer number (931896).

Almost surely, 2^4947478 is an apocalyptic number.

4947478 is a deficient number, since it is larger than the sum of its proper divisors (2507690).

4947478 is a wasteful number, since it uses less digits than its factorization.

4947478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11318.

The product of its digits is 225792, while the sum is 43.

The square root of 4947478 is about 2224.2926965667. The cubic root of 4947478 is about 170.3967434925.

The spelling of 4947478 in words is "four million, nine hundred forty-seven thousand, four hundred seventy-eight".