297123993 has 24 divisors (see below), whose sum is σ = 435142656. Its totient is φ = 195350400.

The previous prime is 297123979. The next prime is 297124001. The reversal of 297123993 is 399321792.

It is a happy number.

It is not a de Polignac number, because 297123993 - 2⁵ = 297123961 is a prime.

It is not an unprimeable number, because it can be changed into a prime (297123923) 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 23 ways as a sum of consecutive naturals, for example, 217633 + ... + 218993.

It is an arithmetic number, because the mean of its divisors is an integer number (18130944).

Almost surely, 2^297123993 is an apocalyptic number.

It is an amenable number.

297123993 is a deficient number, since it is larger than the sum of its proper divisors (138018663).

297123993 is a wasteful number, since it uses less digits than its factorization.

297123993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1685 (or 1682 counting only the distinct ones).

The product of its digits is 183708, while the sum is 45.

The square root of 297123993 is about 17237.2849660264. The cubic root of 297123993 is about 667.2868620521.

It can be divided in two parts, 297123 and 993, that added together give a square (298116 = 546²).

The spelling of 297123993 in words is "two hundred ninety-seven million, one hundred twenty-three thousand, nine hundred ninety-three".