9991102 has 8 divisors (see below), whose sum is σ = 16349112. Its totient is φ = 4541400.

The previous prime is 9991067. The next prime is 9991123. The reversal of 9991102 is 2011999.

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

It is a congruent number.

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, 227049 + ... + 227092.

It is an arithmetic number, because the mean of its divisors is an integer number (2043639).

Almost surely, 2^9991102 is an apocalyptic number.

9991102 is a deficient number, since it is larger than the sum of its proper divisors (6358010).

9991102 is a wasteful number, since it uses less digits than its factorization.

9991102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454154.

The product of its (nonzero) digits is 1458, while the sum is 31.

The square root of 9991102 is about 3160.8704497337. The cubic root of 9991102 is about 215.3795495080.

The spelling of 9991102 in words is "nine million, nine hundred ninety-one thousand, one hundred two".