9828427 has 4 divisors (see below), whose sum is σ = 11232496. Its totient is φ = 8424360.

The previous prime is 9828391. The next prime is 9828433. The reversal of 9828427 is 7248289.

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

It is not a de Polignac number, because 9828427 - 2¹¹ = 9826379 is a prime.

It is a Duffinian number.

9828427 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 9828427.

It is not an unprimeable number, because it can be changed into a prime (9828437) 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 3 ways as a sum of consecutive naturals, for example, 702024 + ... + 702037.

It is an arithmetic number, because the mean of its divisors is an integer number (2808124).

Almost surely, 2^9828427 is an apocalyptic number.

9828427 is a deficient number, since it is larger than the sum of its proper divisors (1404069).

9828427 is a wasteful number, since it uses less digits than its factorization.

9828427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1404068.

The product of its digits is 64512, while the sum is 40.

The square root of 9828427 is about 3135.0322167404. The cubic root of 9828427 is about 214.2042115655.

It can be divided in two parts, 982 and 8427, that added together give a square (9409 = 97²).

The spelling of 9828427 in words is "nine million, eight hundred twenty-eight thousand, four hundred twenty-seven".