197828906 has 16 divisors (see below), whose sum is σ = 323993088. Its totient is φ = 89846400.

The previous prime is 197828903. The next prime is 197828909. The reversal of 197828906 is 609828791.

197828906 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (197828903) and next prime (197828909).

It is not an unprimeable number, because it can be changed into a prime (197828903) 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 in 7 ways as a sum of consecutive naturals, for example, 29306 + ... + 35418.

It is an arithmetic number, because the mean of its divisors is an integer number (20249568).

Almost surely, 2^197828906 is an apocalyptic number.

197828906 is a deficient number, since it is larger than the sum of its proper divisors (126164182).

197828906 is a wasteful number, since it uses less digits than its factorization.

197828906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7597.

The product of its (nonzero) digits is 435456, while the sum is 50.

The square root of 197828906 is about 14065.1664049879. The cubic root of 197828906 is about 582.6797382303.

The spelling of 197828906 in words is "one hundred ninety-seven million, eight hundred twenty-eight thousand, nine hundred six".