4896809 has 2 divisors, whose sum is σ = 4896810. Its totient is φ = 4896808.

The previous prime is 4896803. The next prime is 4896811. The reversal of 4896809 is 9086984.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4000000 + 896809 = 2000^2 + 947^2 .

It is a cyclic number.

It is not a de Polignac number, because 4896809 - 2¹⁶ = 4831273 is a prime.

It is a super-5 number, since 5×4896809⁵ (a number of 35 digits) contains 55555 as substring.

Together with 4896811, it forms a pair of twin primes.

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 4896809.

It is not a weakly prime, because it can be changed into another prime (4896803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2448404 + 2448405.

It is an arithmetic number, because the mean of its divisors is an integer number (2448405).

Almost surely, 2^4896809 is an apocalyptic number.

It is an amenable number.

4896809 is a deficient number, since it is larger than the sum of its proper divisors (1).

4896809 is an equidigital number, since it uses as much as digits as its factorization.

4896809 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 4896809 is about 2212.8734713038. The cubic root of 4896809 is about 169.8130470741.

It can be divided in two parts, 4 and 896809, that multiplied together give a square (3587236 = 1894²).

The spelling of 4896809 in words is "four million, eight hundred ninety-six thousand, eight hundred nine".