4947479 has 4 divisors (see below), whose sum is σ = 4991376. Its totient is φ = 4903584.

The previous prime is 4947463. The next prime is 4947499. The reversal of 4947479 is 9747494.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4947479 - 2⁴ = 4947463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4947499) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21779 + ... + 22004.

It is an arithmetic number, because the mean of its divisors is an integer number (1247844).

Almost surely, 2^4947479 is an apocalyptic number.

4947479 is a deficient number, since it is larger than the sum of its proper divisors (43897).

4947479 is a wasteful number, since it uses less digits than its factorization.

4947479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43896.

The product of its digits is 254016, while the sum is 44.

The square root of 4947479 is about 2224.2929213573. The cubic root of 4947479 is about 170.3967549728.

The spelling of 4947479 in words is "four million, nine hundred forty-seven thousand, four hundred seventy-nine".