4866857 has 2 divisors, whose sum is σ = 4866858. Its totient is φ = 4866856.

The previous prime is 4866847. The next prime is 4866859. The reversal of 4866857 is 7586684.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3400336 + 1466521 = 1844^2 + 1211^2 .

It is a cyclic number.

It is not a de Polignac number, because 4866857 - 2⁸ = 4866601 is a prime.

Together with 4866859, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (4866859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2433428 + 2433429.

It is an arithmetic number, because the mean of its divisors is an integer number (2433429).

Almost surely, 2^4866857 is an apocalyptic number.

It is an amenable number.

4866857 is a deficient number, since it is larger than the sum of its proper divisors (1).

4866857 is an equidigital number, since it uses as much as digits as its factorization.

4866857 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 322560, while the sum is 44.

The square root of 4866857 is about 2206.0954195139. The cubic root of 4866857 is about 169.4661105284.

The spelling of 4866857 in words is "four million, eight hundred sixty-six thousand, eight hundred fifty-seven".