849897 has 6 divisors (see below), whose sum is σ = 1227642. Its totient is φ = 566592.

The previous prime is 849883. The next prime is 849917. The reversal of 849897 is 798948.

It can be written as a sum of positive squares in only one way, i.e., 665856 + 184041 = 816^2 + 429^2 .

It is not a de Polignac number, because 849897 - 2⁶ = 849833 is a prime.

It is not an unprimeable number, because it can be changed into a prime (849857) 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, 47208 + ... + 47225.

It is an arithmetic number, because the mean of its divisors is an integer number (204607).

2⁸⁴⁹⁸⁹⁷ is an apocalyptic number.

It is an amenable number.

849897 is a deficient number, since it is larger than the sum of its proper divisors (377745).

849897 is a wasteful number, since it uses less digits than its factorization.

849897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94439 (or 94436 counting only the distinct ones).

The product of its digits is 145152, while the sum is 45.

The square root of 849897 is about 921.8985844441. The cubic root of 849897 is about 94.7229973433.

The spelling of 849897 in words is "eight hundred forty-nine thousand, eight hundred ninety-seven".