297648 has 80 divisors (see below), whose sum is σ = 937440. Its totient is φ = 89856.

The previous prime is 297641. The next prime is 297659. The reversal of 297648 is 846792.

297648 is a `hidden beast` number, since 2 + 9 + 7 + 648 = 666.

297648 is nontrivially palindromic in base 5.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a d-powerful number, because it can be written as 2⁷ + 9 + 6⁷ + 7⁵ + 4⁴ + 8³ .

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 297648.

It is not an unprimeable number, because it can be changed into a prime (297641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5590 + ... + 5642.

It is an arithmetic number, because the mean of its divisors is an integer number (11718).

2²⁹⁷⁶⁴⁸ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 297648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (468720).

297648 is an abundant number, since it is smaller than the sum of its proper divisors (639792).

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

297648 is a wasteful number, since it uses less digits than its factorization.

297648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83 (or 71 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 297648 is about 545.5712602401. The cubic root of 297648 is about 66.7678906722.

The spelling of 297648 in words is "two hundred ninety-seven thousand, six hundred forty-eight".