9950638 has 4 divisors (see below), whose sum is σ = 14925960. Its totient is φ = 4975318.

The previous prime is 9950617. The next prime is 9950641. The reversal of 9950638 is 8360599.

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

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 9950638.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2487658 + ... + 2487661.

It is an arithmetic number, because the mean of its divisors is an integer number (3731490).

Almost surely, 2^9950638 is an apocalyptic number.

9950638 is a deficient number, since it is larger than the sum of its proper divisors (4975322).

9950638 is a wasteful number, since it uses less digits than its factorization.

9950638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4975321.

The product of its (nonzero) digits is 58320, while the sum is 40.

The square root of 9950638 is about 3154.4631872951. The cubic root of 9950638 is about 215.0883934355.

The spelling of 9950638 in words is "nine million, nine hundred fifty thousand, six hundred thirty-eight".