4820857 has 2 divisors, whose sum is σ = 4820858. Its totient is φ = 4820856.

The previous prime is 4820833. The next prime is 4820887. The reversal of 4820857 is 7580284.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3154176 + 1666681 = 1776^2 + 1291^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4820857 is a prime.

It is not a weakly prime, because it can be changed into another prime (4820807) 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, 2410428 + 2410429.

It is an arithmetic number, because the mean of its divisors is an integer number (2410429).

Almost surely, 2^4820857 is an apocalyptic number.

It is an amenable number.

4820857 is a deficient number, since it is larger than the sum of its proper divisors (1).

4820857 is an equidigital number, since it uses as much as digits as its factorization.

4820857 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17920, while the sum is 34.

The square root of 4820857 is about 2195.6450077369. The cubic root of 4820857 is about 168.9305060727.

The spelling of 4820857 in words is "four million, eight hundred twenty thousand, eight hundred fifty-seven".