9930538 has 4 divisors (see below), whose sum is σ = 14895810. Its totient is φ = 4965268.

The previous prime is 9930527. The next prime is 9930581. The reversal of 9930538 is 8350399.

9930538 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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., 7689529 + 2241009 = 2773^2 + 1497^2 .

It is a junction number, because it is equal to n+sod(n) for n = 9930497 and 9930506.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2482633 + ... + 2482636.

Almost surely, 2^9930538 is an apocalyptic number.

9930538 is a deficient number, since it is larger than the sum of its proper divisors (4965272).

9930538 is a wasteful number, since it uses less digits than its factorization.

9930538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4965271.

The product of its (nonzero) digits is 29160, while the sum is 37.

The square root of 9930538 is about 3151.2756147313. The cubic root of 9930538 is about 214.9434717081.

The spelling of 9930538 in words is "nine million, nine hundred thirty thousand, five hundred thirty-eight".