842097 has 4 divisors (see below), whose sum is σ = 1122800. Its totient is φ = 561396.

The previous prime is 842089. The next prime is 842111. The reversal of 842097 is 790248.

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.

It is not a de Polignac number, because 842097 - 2³ = 842089 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (842047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140347 + ... + 140352.

It is an arithmetic number, because the mean of its divisors is an integer number (280700).

2⁸⁴²⁰⁹⁷ is an apocalyptic number.

It is an amenable number.

842097 is a deficient number, since it is larger than the sum of its proper divisors (280703).

842097 is a wasteful number, since it uses less digits than its factorization.

842097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280702.

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 842097 is about 917.6584331874. The cubic root of 842097 is about 94.4323302673.

The spelling of 842097 in words is "eight hundred forty-two thousand, ninety-seven".