9813842 has 16 divisors (see below), whose sum is σ = 15876000. Its totient is φ = 4534560.

The previous prime is 9813829. The next prime is 9813871. The reversal of 9813842 is 2483189.

It is a happy number.

It is a super-2 number, since 2×9813842² = 192622989601928, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1592 + ... + 4707.

It is an arithmetic number, because the mean of its divisors is an integer number (992250).

Almost surely, 2^9813842 is an apocalyptic number.

9813842 is a deficient number, since it is larger than the sum of its proper divisors (6062158).

9813842 is a wasteful number, since it uses less digits than its factorization.

9813842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6361.

The product of its digits is 13824, while the sum is 35.

The square root of 9813842 is about 3132.7052207318. The cubic root of 9813842 is about 214.0982022288.

The spelling of 9813842 in words is "nine million, eight hundred thirteen thousand, eight hundred forty-two".