4489847 has 2 divisors, whose sum is σ = 4489848. Its totient is φ = 4489846.

The previous prime is 4489843. The next prime is 4489861. The reversal of 4489847 is 7489844.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4489847 - 2² = 4489843 is a prime.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 4489798 and 4489807.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4489843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2244923 + 2244924.

It is an arithmetic number, because the mean of its divisors is an integer number (2244924).

Almost surely, 2^4489847 is an apocalyptic number.

4489847 is a deficient number, since it is larger than the sum of its proper divisors (1).

4489847 is an equidigital number, since it uses as much as digits as its factorization.

4489847 is an evil number, because the sum of its binary digits is even.

The product of its digits is 258048, while the sum is 44.

The square root of 4489847 is about 2118.9259071520. The cubic root of 4489847 is about 164.9721042525.

The spelling of 4489847 in words is "four million, four hundred eighty-nine thousand, eight hundred forty-seven".