9828399 has 8 divisors (see below), whose sum is σ = 14976640. Its totient is φ = 5616216.

The previous prime is 9828391. The next prime is 9828433. The reversal of 9828399 is 9938289.

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

It is not a de Polignac number, because 9828399 - 2³ = 9828391 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9828391) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 233989 + ... + 234030.

It is an arithmetic number, because the mean of its divisors is an integer number (1872080).

Almost surely, 2^9828399 is an apocalyptic number.

9828399 is a deficient number, since it is larger than the sum of its proper divisors (5148241).

9828399 is a wasteful number, since it uses less digits than its factorization.

9828399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 468029.

The product of its digits is 279936, while the sum is 48.

The square root of 9828399 is about 3135.0277510733. The cubic root of 9828399 is about 214.2040081514.

It can be divided in two parts, 9 and 828399, that multiplied together give a triangular number (7455591 = T₃₈₆₁).

The spelling of 9828399 in words is "nine million, eight hundred twenty-eight thousand, three hundred ninety-nine".