297906 has 32 divisors (see below), whose sum is σ = 701568. Its totient is φ = 82560.

The previous prime is 297893. The next prime is 297907. The reversal of 297906 is 609792.

297906 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (297907) by changing a digit.

297906 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1636 + ... + 1808.

It is an arithmetic number, because the mean of its divisors is an integer number (21924).

2²⁹⁷⁹⁰⁶ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 297906, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (350784).

297906 is an abundant number, since it is smaller than the sum of its proper divisors (403662).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

297906 is a wasteful number, since it uses less digits than its factorization.

297906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226.

The product of its (nonzero) digits is 6804, while the sum is 33.

The square root of 297906 is about 545.8076584292. The cubic root of 297906 is about 66.7871764740.

The spelling of 297906 in words is "two hundred ninety-seven thousand, nine hundred six".