4968809 has 2 divisors, whose sum is σ = 4968810. Its totient is φ = 4968808.

The previous prime is 4968797. The next prime is 4968827. The reversal of 4968809 is 9088694.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4853209 + 115600 = 2203^2 + 340^2 .

It is a cyclic number.

It is not a de Polignac number, because 4968809 - 2²⁰ = 3920233 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4968809.

It is not a weakly prime, because it can be changed into another prime (4968829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2484404 + 2484405.

It is an arithmetic number, because the mean of its divisors is an integer number (2484405).

Almost surely, 2^4968809 is an apocalyptic number.

It is an amenable number.

4968809 is a deficient number, since it is larger than the sum of its proper divisors (1).

4968809 is an equidigital number, since it uses as much as digits as its factorization.

4968809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 124416, while the sum is 44.

The square root of 4968809 is about 2229.0825466994. The cubic root of 4968809 is about 170.6412803189.

Subtracting 4968809 from its reverse (9088694), we obtain a triangular number (4119885 = T₂₈₇₀).

The spelling of 4968809 in words is "four million, nine hundred sixty-eight thousand, eight hundred nine".