9822742 has 4 divisors (see below), whose sum is σ = 14734116. Its totient is φ = 4911370.

The previous prime is 9822737. The next prime is 9822809. The reversal of 9822742 is 2472289.

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

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 9822698 and 9822707.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 2455684 + ... + 2455687.

It is an arithmetic number, because the mean of its divisors is an integer number (3683529).

Almost surely, 2^9822742 is an apocalyptic number.

9822742 is a deficient number, since it is larger than the sum of its proper divisors (4911374).

9822742 is a wasteful number, since it uses less digits than its factorization.

9822742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4911373.

The product of its digits is 16128, while the sum is 34.

The square root of 9822742 is about 3134.1253963427. The cubic root of 9822742 is about 214.1629033002.

The spelling of 9822742 in words is "nine million, eight hundred twenty-two thousand, seven hundred forty-two".