9991354 has 8 divisors (see below), whose sum is σ = 15306048. Its totient is φ = 4889340.

The previous prime is 9991349. The next prime is 9991357. The reversal of 9991354 is 4531999.

9991354 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not an unprimeable number, because it can be changed into a prime (9991357) 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, 53052 + ... + 53239.

It is an arithmetic number, because the mean of its divisors is an integer number (1913256).

Almost surely, 2^9991354 is an apocalyptic number.

9991354 is a gapful number since it is divisible by the number (94) formed by its first and last digit.

9991354 is a deficient number, since it is larger than the sum of its proper divisors (5314694).

9991354 is a wasteful number, since it uses less digits than its factorization.

9991354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106340.

The product of its digits is 43740, while the sum is 40.

The square root of 9991354 is about 3160.9103119197. The cubic root of 9991354 is about 215.3813602923.

The spelling of 9991354 in words is "nine million, nine hundred ninety-one thousand, three hundred fifty-four".