9994789 has 16 divisors (see below), whose sum is σ = 11784960. Its totient is φ = 8300160.

The previous prime is 9994769. The next prime is 9994799. The reversal of 9994789 is 9874999.

It is a cyclic number.

It is not a de Polignac number, because 9994789 - 2⁵ = 9994757 is a prime.

It is a d-powerful number, because it can be written as 9³ + 9³ + 9³ + 4¹¹ + 7⁸ + 8⁵ + 9³ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9994709) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37872 + ... + 38134.

It is an arithmetic number, because the mean of its divisors is an integer number (736560).

Almost surely, 2^9994789 is an apocalyptic number.

It is an amenable number.

9994789 is a deficient number, since it is larger than the sum of its proper divisors (1790171).

9994789 is a wasteful number, since it uses less digits than its factorization.

9994789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420.

The product of its digits is 1469664, while the sum is 55.

The square root of 9994789 is about 3161.4536213584. The cubic root of 9994789 is about 215.4060399704.

The spelling of 9994789 in words is "nine million, nine hundred ninety-four thousand, seven hundred eighty-nine".