4809643 has 2 divisors, whose sum is σ = 4809644. Its totient is φ = 4809642.

The previous prime is 4809583. The next prime is 4809653. The reversal of 4809643 is 3469084.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4809643 - 2¹³ = 4801451 is a prime.

It is a super-3 number, since 3×4809643³ (a number of 21 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4809599 and 4809608.

It is not a weakly prime, because it can be changed into another prime (4809653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2404821 + 2404822.

It is an arithmetic number, because the mean of its divisors is an integer number (2404822).

Almost surely, 2^4809643 is an apocalyptic number.

4809643 is a deficient number, since it is larger than the sum of its proper divisors (1).

4809643 is an equidigital number, since it uses as much as digits as its factorization.

4809643 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 4809643 is about 2193.0898294416. The cubic root of 4809643 is about 168.7994189052.

The spelling of 4809643 in words is "four million, eight hundred nine thousand, six hundred forty-three".