897898 has 16 divisors (see below), whose sum is σ = 1415880. Its totient is φ = 426496.

The previous prime is 897887. The next prime is 897899. The reversal of 897898 is 898798.

It can be written as a sum of positive squares in 4 ways, for example, as 558009 + 339889 = 747^2 + 583^2 .

It is not an unprimeable number, because it can be changed into a prime (897899) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6486 + ... + 6622.

2⁸⁹⁷⁸⁹⁸ is an apocalyptic number.

897898 is the 507-th centered heptagonal number.

897898 is a deficient number, since it is larger than the sum of its proper divisors (517982).

897898 is a wasteful number, since it uses less digits than its factorization.

897898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281.

The product of its digits is 290304, while the sum is 49.

The square root of 897898 is about 947.5747991584. The cubic root of 897898 is about 96.4737147305.

Subtracting 897898 from its reverse (898798), we obtain a square (900 = 30²).

It can be divided in two parts, 8978 and 98, that multiplied together give a square (879844 = 938²).

The spelling of 897898 in words is "eight hundred ninety-seven thousand, eight hundred ninety-eight".