199285393 has 2 divisors, whose sum is σ = 199285394. Its totient is φ = 199285392.

The previous prime is 199285381. The next prime is 199285439. The reversal of 199285393 is 393582991.

199285393 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 183548304 + 15737089 = 13548^2 + 3967^2 .

It is a cyclic number.

It is not a de Polignac number, because 199285393 - 2⁹ = 199284881 is a prime.

It is not a weakly prime, because it can be changed into another prime (199285313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99642696 + 99642697.

It is an arithmetic number, because the mean of its divisors is an integer number (99642697).

Almost surely, 2^199285393 is an apocalyptic number.

It is an amenable number.

199285393 is a deficient number, since it is larger than the sum of its proper divisors (1).

199285393 is an equidigital number, since it uses as much as digits as its factorization.

199285393 is an evil number, because the sum of its binary digits is even.

The product of its digits is 524880, while the sum is 49.

The square root of 199285393 is about 14116.8478422061. The cubic root of 199285393 is about 584.1062085950.

The spelling of 199285393 in words is "one hundred ninety-nine million, two hundred eighty-five thousand, three hundred ninety-three".