9920938 has 8 divisors (see below), whose sum is σ = 14908932. Its totient is φ = 4951296.

The previous prime is 9920923. The next prime is 9920947. The reversal of 9920938 is 8390299.

It is a happy number.

9920938 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 7969329 + 1951609 = 2823^2 + 1397^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 9920938.

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, 3145 + ... + 5452.

Almost surely, 2^9920938 is an apocalyptic number.

9920938 is a deficient number, since it is larger than the sum of its proper divisors (4987994).

9920938 is a wasteful number, since it uses less digits than its factorization.

9920938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9176.

The product of its (nonzero) digits is 34992, while the sum is 40.

The square root of 9920938 is about 3149.7520537338. The cubic root of 9920938 is about 214.8741863511.

The spelling of 9920938 in words is "nine million, nine hundred twenty thousand, nine hundred thirty-eight".