4947518 has 4 divisors (see below), whose sum is σ = 7421280. Its totient is φ = 2473758.

The previous prime is 4947517. The next prime is 4947521. The reversal of 4947518 is 8157494.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8157494 = 2 ⋅4078747.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4947517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1236878 + ... + 1236881.

It is an arithmetic number, because the mean of its divisors is an integer number (1855320).

Almost surely, 2^4947518 is an apocalyptic number.

4947518 is a deficient number, since it is larger than the sum of its proper divisors (2473762).

4947518 is a wasteful number, since it uses less digits than its factorization.

4947518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2473761.

The product of its digits is 40320, while the sum is 38.

The square root of 4947518 is about 2224.3016881709. The cubic root of 4947518 is about 170.3972027063.

The spelling of 4947518 in words is "four million, nine hundred forty-seven thousand, five hundred eighteen".