986897 has 4 divisors (see below), whose sum is σ = 992256. Its totient is φ = 981540.

The previous prime is 986857. The next prime is 986903. The reversal of 986897 is 798689.

986897 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 798689 = 29 ⋅27541.

It is a cyclic number.

It is not a de Polignac number, because 986897 - 2⁸ = 986641 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (986837) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2393 + ... + 2774.

It is an arithmetic number, because the mean of its divisors is an integer number (248064).

2⁹⁸⁶⁸⁹⁷ is an apocalyptic number.

It is an amenable number.

986897 is a deficient number, since it is larger than the sum of its proper divisors (5359).

986897 is a wasteful number, since it uses less digits than its factorization.

986897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5358.

The product of its digits is 217728, while the sum is 47.

The square root of 986897 is about 993.4268971595. The cubic root of 986897 is about 99.5613116730.

The spelling of 986897 in words is "nine hundred eighty-six thousand, eight hundred ninety-seven".