297809228 has 12 divisors (see below), whose sum is σ = 533286600. Its totient is φ = 145441632.

The previous prime is 297809209. The next prime is 297809231. The reversal of 297809228 is 822908792.

297809228 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 865553 + ... + 865896.

It is an arithmetic number, because the mean of its divisors is an integer number (44440550).

Almost surely, 2^297809228 is an apocalyptic number.

It is an amenable number.

297809228 is a deficient number, since it is larger than the sum of its proper divisors (235477372).

297809228 is a wasteful number, since it uses less digits than its factorization.

297809228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1731496 (or 1731494 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 47.

The square root of 297809228 is about 17257.1500543977. The cubic root of 297809228 is about 667.7994395925.

The spelling of 297809228 in words is "two hundred ninety-seven million, eight hundred nine thousand, two hundred twenty-eight".