9991094 has 4 divisors (see below), whose sum is σ = 14986644. Its totient is φ = 4995546.

The previous prime is 9991067. The next prime is 9991123. The reversal of 9991094 is 4901999.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4901999 = 31 ⋅158129.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2497772 + ... + 2497775.

It is an arithmetic number, because the mean of its divisors is an integer number (3746661).

Almost surely, 2^9991094 is an apocalyptic number.

9991094 is a deficient number, since it is larger than the sum of its proper divisors (4995550).

9991094 is a wasteful number, since it uses less digits than its factorization.

9991094 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4995549.

The product of its (nonzero) digits is 26244, while the sum is 41.

The square root of 9991094 is about 3160.8691842593. The cubic root of 9991094 is about 215.3794920223.

The spelling of 9991094 in words is "nine million, nine hundred ninety-one thousand, ninety-four".