9820747 has 8 divisors (see below), whose sum is σ = 10850976. Its totient is φ = 8840832.

The previous prime is 9820729. The next prime is 9820751. The reversal of 9820747 is 7470289.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 9820747 - 2⁷ = 9820619 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9820757) 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 in 7 ways as a sum of consecutive naturals, for example, 12168 + ... + 12949.

It is an arithmetic number, because the mean of its divisors is an integer number (1356372).

Almost surely, 2^9820747 is an apocalyptic number.

9820747 is a deficient number, since it is larger than the sum of its proper divisors (1030229).

9820747 is a wasteful number, since it uses less digits than its factorization.

9820747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25157.

The product of its (nonzero) digits is 28224, while the sum is 37.

The square root of 9820747 is about 3133.8071095714. The cubic root of 9820747 is about 214.1484034820.

It can be divided in two parts, 982074 and 7, that added together give a square (982081 = 991²).

The spelling of 9820747 in words is "nine million, eight hundred twenty thousand, seven hundred forty-seven".