9911954 has 16 divisors (see below), whose sum is σ = 16315992. Its totient is φ = 4487808.

The previous prime is 9911953. The next prime is 9911959. The reversal of 9911954 is 4591199.

It can be written as a sum of positive squares in 4 ways, for example, as 5396329 + 4515625 = 2323^2 + 2125^2 .

It is not an unprimeable number, because it can be changed into a prime (9911953) 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 7 ways as a sum of consecutive naturals, for example, 2219 + ... + 4974.

Almost surely, 2^9911954 is an apocalyptic number.

9911954 is a deficient number, since it is larger than the sum of its proper divisors (6404038).

9911954 is a wasteful number, since it uses less digits than its factorization.

9911954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7261.

The product of its digits is 14580, while the sum is 38.

The square root of 9911954 is about 3148.3255867207. The cubic root of 9911954 is about 214.8093063068.

It can be divided in two parts, 991195 and 4, that added together give a palindrome (991199).

The spelling of 9911954 in words is "nine million, nine hundred eleven thousand, nine hundred fifty-four".