9817042 has 4 divisors (see below), whose sum is σ = 14725566. Its totient is φ = 4908520.

The previous prime is 9817039. The next prime is 9817043. The reversal of 9817042 is 2407189.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 6964321 + 2852721 = 2639^2 + 1689^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 9816995 and 9817013.

It is not an unprimeable number, because it can be changed into a prime (9817043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2454259 + ... + 2454262.

Almost surely, 2^9817042 is an apocalyptic number.

9817042 is a deficient number, since it is larger than the sum of its proper divisors (4908524).

9817042 is a wasteful number, since it uses less digits than its factorization.

9817042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4908523.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 9817042 is about 3133.2159197859. The cubic root of 9817042 is about 214.1214700375.

The spelling of 9817042 in words is "nine million, eight hundred seventeen thousand, forty-two".