897824 has 12 divisors (see below), whose sum is σ = 1767654. Its totient is φ = 448896.

The previous prime is 897817. The next prime is 897829. The reversal of 897824 is 428798.

It can be written as a sum of positive squares in only one way, i.e., 753424 + 144400 = 868^2 + 380^2 .

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (897829) by changing a digit.

897824 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 as a sum of consecutive naturals, namely, 13997 + ... + 14060.

2⁸⁹⁷⁸²⁴ is an apocalyptic number.

It is an amenable number.

897824 is a deficient number, since it is larger than the sum of its proper divisors (869830).

897824 is a wasteful number, since it uses less digits than its factorization.

897824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28067 (or 28059 counting only the distinct ones).

The product of its digits is 32256, while the sum is 38.

The square root of 897824 is about 947.5357513044. The cubic root of 897824 is about 96.4710643734.

Subtracting from 897824 its product of digits (32256), we obtain a palindrome (865568).

It can be divided in two parts, 89782 and 4, that multiplied together give a triangular number (359128 = T₈₄₇).

The spelling of 897824 in words is "eight hundred ninety-seven thousand, eight hundred twenty-four".