9994638 has 16 divisors (see below), whose sum is σ = 20021760. Its totient is φ = 3326136.

The previous prime is 9994631. The next prime is 9994669. The reversal of 9994638 is 8364999.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9994631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4803 + ... + 6561.

It is an arithmetic number, because the mean of its divisors is an integer number (1251360).

Almost surely, 2^9994638 is an apocalyptic number.

9994638 is an abundant number, since it is smaller than the sum of its proper divisors (10027122).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9994638 is a wasteful number, since it uses less digits than its factorization.

9994638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2711.

The product of its digits is 419904, while the sum is 48.

The square root of 9994638 is about 3161.4297398487. The cubic root of 9994638 is about 215.4049551893.

The spelling of 9994638 in words is "nine million, nine hundred ninety-four thousand, six hundred thirty-eight".