4489947 has 72 divisors (see below), whose sum is σ = 8852480. Its totient is φ = 2138400.

The previous prime is 4489943. The next prime is 4489967. The reversal of 4489947 is 7499844.

It is not a de Polignac number, because 4489947 - 2² = 4489943 is a prime.

4489947 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4489943) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 144822 + ... + 144852.

Almost surely, 2^4489947 is an apocalyptic number.

4489947 is a deficient number, since it is larger than the sum of its proper divisors (4362533).

4489947 is a wasteful number, since it uses less digits than its factorization.

4489947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85 (or 71 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 4489947 is about 2118.9495038816. The cubic root of 4489947 is about 164.9733290224.

The spelling of 4489947 in words is "four million, four hundred eighty-nine thousand, nine hundred forty-seven".