84897 has 6 divisors (see below), whose sum is σ = 122642. Its totient is φ = 56592.

The previous prime is 84871. The next prime is 84913. The reversal of 84897 is 79848.

It can be written as a sum of positive squares in only one way, i.e., 77841 + 7056 = 279^2 + 84^2 .

It is not a de Polignac number, because 84897 - 2¹⁰ = 83873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84827) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4708 + ... + 4725.

2⁸⁴⁸⁹⁷ is an apocalyptic number.

It is an amenable number.

84897 is a deficient number, since it is larger than the sum of its proper divisors (37745).

84897 is a wasteful number, since it uses less digits than its factorization.

84897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9439 (or 9436 counting only the distinct ones).

The product of its digits is 16128, while the sum is 36.

The square root of 84897 is about 291.3708976545. The cubic root of 84897 is about 43.9505297998.

Adding to 84897 its product of digits (16128), we get a triangular number (101025 = T₄₄₉).

The spelling of 84897 in words is "eighty-four thousand, eight hundred ninety-seven".