9913918 has 8 divisors (see below), whose sum is σ = 16995312. Its totient is φ = 4248816.

The previous prime is 9913901. The next prime is 9913919. The reversal of 9913918 is 8193199.

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

It is a super-3 number, since 3×9913918³ (a number of 22 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9913919) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 354055 + ... + 354082.

It is an arithmetic number, because the mean of its divisors is an integer number (2124414).

Almost surely, 2^9913918 is an apocalyptic number.

9913918 is a deficient number, since it is larger than the sum of its proper divisors (7081394).

9913918 is a wasteful number, since it uses less digits than its factorization.

9913918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 708146.

The product of its digits is 17496, while the sum is 40.

The square root of 9913918 is about 3148.6374831028. The cubic root of 9913918 is about 214.8234931367.

The spelling of 9913918 in words is "nine million, nine hundred thirteen thousand, nine hundred eighteen".