9879538 has 4 divisors (see below), whose sum is σ = 14819310. Its totient is φ = 4939768.

The previous prime is 9879521. The next prime is 9879557. The reversal of 9879538 is 8359789.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8359789 = 103 ⋅81163.

It can be written as a sum of positive squares in only one way, i.e., 9878449 + 1089 = 3143^2 + 33^2 .

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 9879491 and 9879500.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2469883 + ... + 2469886.

Almost surely, 2^9879538 is an apocalyptic number.

9879538 is a deficient number, since it is larger than the sum of its proper divisors (4939772).

9879538 is a wasteful number, since it uses less digits than its factorization.

9879538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4939771.

The product of its digits is 544320, while the sum is 49.

The square root of 9879538 is about 3143.1732373511. The cubic root of 9879538 is about 214.5748801731.

The spelling of 9879538 in words is "nine million, eight hundred seventy-nine thousand, five hundred thirty-eight".