4975643 has 2 divisors, whose sum is σ = 4975644. Its totient is φ = 4975642.

The previous prime is 4975639. The next prime is 4975651. The reversal of 4975643 is 3465794.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4975643 - 2² = 4975639 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4975597 and 4975606.

It is not a weakly prime, because it can be changed into another prime (4975673) 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 as a sum of consecutive naturals, namely, 2487821 + 2487822.

It is an arithmetic number, because the mean of its divisors is an integer number (2487822).

Almost surely, 2^4975643 is an apocalyptic number.

4975643 is a deficient number, since it is larger than the sum of its proper divisors (1).

4975643 is an equidigital number, since it uses as much as digits as its factorization.

4975643 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 90720, while the sum is 38.

The square root of 4975643 is about 2230.6149376349. The cubic root of 4975643 is about 170.7194766754.

The spelling of 4975643 in words is "four million, nine hundred seventy-five thousand, six hundred forty-three".