9993994 has 8 divisors (see below), whose sum is σ = 15872868. Its totient is φ = 4703040.

The previous prime is 9993989. The next prime is 9994001. The reversal of 9993994 is 4993999.

9993994 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 9333025 + 660969 = 3055^2 + 813^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 146937 + ... + 147004.

Almost surely, 2^9993994 is an apocalyptic number.

9993994 is a deficient number, since it is larger than the sum of its proper divisors (5878874).

9993994 is a wasteful number, since it uses less digits than its factorization.

9993994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293960.

The product of its digits is 708588, while the sum is 52.

The square root of 9993994 is about 3161.3278855570. The cubic root of 9993994 is about 215.4003285828.

The spelling of 9993994 in words is "nine million, nine hundred ninety-three thousand, nine hundred ninety-four".