297864 has 64 divisors (see below), whose sum is σ = 950400. Its totient is φ = 84672.

The previous prime is 297853. The next prime is 297881. The reversal of 297864 is 468792.

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

It is a nude number because it is divisible by every one of its digits.

It is a d-powerful number, because it can be written as 2³ + 9² + 8 + 7⁵ + 6⁷ + 4⁵ .

It is one of the 548 Lynch-Bell numbers.

It is an unprimeable number.

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, 1414 + ... + 1610.

It is an arithmetic number, because the mean of its divisors is an integer number (14850).

2²⁹⁷⁸⁶⁴ is an apocalyptic number.

297864 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 297864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (475200).

297864 is an abundant number, since it is smaller than the sum of its proper divisors (652536).

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

297864 is a wasteful number, since it uses less digits than its factorization.

297864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219 (or 209 counting only the distinct ones).

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

The square root of 297864 is about 545.7691819808. The cubic root of 297864 is about 66.7840376838.

The spelling of 297864 in words is "two hundred ninety-seven thousand, eight hundred sixty-four".