9872438 has 8 divisors (see below), whose sum is σ = 15588120. Its totient is φ = 4676400.

The previous prime is 9872437. The next prime is 9872449. The reversal of 9872438 is 8342789.

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

It is a junction number, because it is equal to n+sod(n) for n = 9872395 and 9872404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9872437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 129863 + ... + 129938.

It is an arithmetic number, because the mean of its divisors is an integer number (1948515).

Almost surely, 2^9872438 is an apocalyptic number.

9872438 is a deficient number, since it is larger than the sum of its proper divisors (5715682).

9872438 is a wasteful number, since it uses less digits than its factorization.

9872438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259822.

The product of its digits is 96768, while the sum is 41.

The square root of 9872438 is about 3142.0436024982. The cubic root of 9872438 is about 214.5234659353.

The spelling of 9872438 in words is "nine million, eight hundred seventy-two thousand, four hundred thirty-eight".