4945447 has 8 divisors (see below), whose sum is σ = 5359760. Its totient is φ = 4563000.

The previous prime is 4945411. The next prime is 4945469. The reversal of 4945447 is 7445494.

It is a happy number.

It is not a de Polignac number, because 4945447 - 2¹⁹ = 4421159 is a prime.

It is a d-powerful number, because it can be written as 4² + 9⁷ + 4² + 5⁷ + 4⁷ + 4⁸ + 7⁴ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4945477) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1072 + ... + 3322.

It is an arithmetic number, because the mean of its divisors is an integer number (669970).

Almost surely, 2^4945447 is an apocalyptic number.

4945447 is a deficient number, since it is larger than the sum of its proper divisors (414313).

4945447 is an equidigital number, since it uses as much as digits as its factorization.

4945447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2290 (or 2264 counting only the distinct ones).

The product of its digits is 80640, while the sum is 37.

The square root of 4945447 is about 2223.8361000757. The cubic root of 4945447 is about 170.3734236547.

The spelling of 4945447 in words is "four million, nine hundred forty-five thousand, four hundred forty-seven".