9971438 has 8 divisors (see below), whose sum is σ = 15028680. Its totient is φ = 4961880.

The previous prime is 9971417. The next prime is 9971441. The reversal of 9971438 is 8341799.

It is a happy number.

9971438 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 = 9971395 and 9971404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11393 + ... + 12236.

It is an arithmetic number, because the mean of its divisors is an integer number (1878585).

Almost surely, 2^9971438 is an apocalyptic number.

9971438 is a deficient number, since it is larger than the sum of its proper divisors (5057242).

9971438 is a wasteful number, since it uses less digits than its factorization.

9971438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23842.

The product of its digits is 54432, while the sum is 41.

The square root of 9971438 is about 3157.7583821439. The cubic root of 9971438 is about 215.2381568627.

The spelling of 9971438 in words is "nine million, nine hundred seventy-one thousand, four hundred thirty-eight".