897280 has 36 divisors (see below), whose sum is σ = 2152332. Its totient is φ = 358400.

The previous prime is 897271. The next prime is 897301. The reversal of 897280 is 82798.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 565504 + 331776 = 752^2 + 576^2 .

It is a super-2 number, since 2×897280² = 1610222796800, which contains 22 as substring.

It is a d-powerful number, because it can be written as 8⁴ + 9 + 2¹⁶ + 7⁷ + 8⁴ + 0 .

It is a nialpdrome in base 16.

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 3 ways as a sum of consecutive naturals, for example, 930 + ... + 1630.

It is an arithmetic number, because the mean of its divisors is an integer number (59787).

2⁸⁹⁷²⁸⁰ is an apocalyptic number.

897280 is a gapful number since it is divisible by the number (80) 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 897280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1076166).

897280 is an abundant number, since it is smaller than the sum of its proper divisors (1255052).

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

897280 is an equidigital number, since it uses as much as digits as its factorization.

897280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 722 (or 708 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 897280 is about 947.2486473994. The cubic root of 897280 is about 96.4515761953.

The spelling of 897280 in words is "eight hundred ninety-seven thousand, two hundred eighty".