5001643 has 2 divisors, whose sum is σ = 5001644. Its totient is φ = 5001642.

The previous prime is 5001629. The next prime is 5001653. The reversal of 5001643 is 3461005.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5001643 - 2¹³ = 4993451 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5001643.

It is not a weakly prime, because it can be changed into another prime (5001653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2500821 + 2500822.

It is an arithmetic number, because the mean of its divisors is an integer number (2500822).

Almost surely, 2^5001643 is an apocalyptic number.

5001643 is a deficient number, since it is larger than the sum of its proper divisors (1).

5001643 is an equidigital number, since it uses as much as digits as its factorization.

5001643 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 5001643 is about 2236.4353332927. The cubic root of 5001643 is about 171.0163225530.

Adding to 5001643 its reverse (3461005), we get a palindrome (8462648).

The spelling of 5001643 in words is "five million, one thousand, six hundred forty-three".