214844857 has 2 divisors, whose sum is σ = 214844858. Its totient is φ = 214844856.

The previous prime is 214844821. The next prime is 214844891. The reversal of 214844857 is 758448412.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 164378041 + 50466816 = 12821^2 + 7104^2 .

It is a cyclic number.

It is not a de Polignac number, because 214844857 - 2¹¹ = 214842809 is a prime.

It is not a weakly prime, because it can be changed into another prime (214844807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107422428 + 107422429.

It is an arithmetic number, because the mean of its divisors is an integer number (107422429).

Almost surely, 2^214844857 is an apocalyptic number.

It is an amenable number.

214844857 is a deficient number, since it is larger than the sum of its proper divisors (1).

214844857 is an equidigital number, since it uses as much as digits as its factorization.

214844857 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 286720, while the sum is 43.

The square root of 214844857 is about 14657.5870115105. The cubic root of 214844857 is about 598.9285108054.

The spelling of 214844857 in words is "two hundred fourteen million, eight hundred forty-four thousand, eight hundred fifty-seven".