2858393 has 2 divisors, whose sum is σ = 2858394. Its totient is φ = 2858392.

The previous prime is 2858381. The next prime is 2858423. The reversal of 2858393 is 3938582.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1630729 + 1227664 = 1277^2 + 1108^2 .

It is a cyclic number.

It is not a de Polignac number, because 2858393 - 2¹⁰ = 2857369 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (2858333) 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, 1429196 + 1429197.

It is an arithmetic number, because the mean of its divisors is an integer number (1429197).

2^2858393 is an apocalyptic number.

It is an amenable number.

2858393 is a deficient number, since it is larger than the sum of its proper divisors (1).

2858393 is an equidigital number, since it uses as much as digits as its factorization.

2858393 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 51840, while the sum is 38.

The square root of 2858393 is about 1690.6782662588. The cubic root of 2858393 is about 141.9190340523.

The spelling of 2858393 in words is "two million, eight hundred fifty-eight thousand, three hundred ninety-three".