9879242 has 4 divisors (see below), whose sum is σ = 14818866. Its totient is φ = 4939620.

The previous prime is 9879239. The next prime is 9879257. The reversal of 9879242 is 2429789.

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

It can be written as a sum of positive squares in only one way, i.e., 9853321 + 25921 = 3139^2 + 161^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 9879242.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2469809 + ... + 2469812.

Almost surely, 2^9879242 is an apocalyptic number.

9879242 is a deficient number, since it is larger than the sum of its proper divisors (4939624).

9879242 is a wasteful number, since it uses less digits than its factorization.

9879242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4939623.

The product of its digits is 72576, while the sum is 41.

The square root of 9879242 is about 3143.1261508250. The cubic root of 9879242 is about 214.5727371984.

The spelling of 9879242 in words is "nine million, eight hundred seventy-nine thousand, two hundred forty-two".