9939894 has 8 divisors (see below), whose sum is σ = 19879800. Its totient is φ = 3313296.

The previous prime is 9939893. The next prime is 9939901. The reversal of 9939894 is 4989399.

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

9939894 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9939893) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 828319 + ... + 828330.

It is an arithmetic number, because the mean of its divisors is an integer number (2484975).

Almost surely, 2^9939894 is an apocalyptic number.

9939894 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

9939894 is a wasteful number, since it uses less digits than its factorization.

9939894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1656654.

The product of its digits is 629856, while the sum is 51.

The square root of 9939894 is about 3152.7597434629. The cubic root of 9939894 is about 215.0109531106.

It can be divided in two parts, 99 and 39894, that added together give a palindrome (39993).

The spelling of 9939894 in words is "nine million, nine hundred thirty-nine thousand, eight hundred ninety-four".