99641111 has 16 divisors (see below), whose sum is σ = 110379360. Its totient is φ = 89579520.

The previous prime is 99641093. The next prime is 99641137. The reversal of 99641111 is 11114699.

It is a cyclic number.

It is not a de Polignac number, because 99641111 - 2¹⁴ = 99624727 is a prime.

It is a nialpdrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99641011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27095 + ... + 30551.

It is an arithmetic number, because the mean of its divisors is an integer number (6898710).

Almost surely, 2^99641111 is an apocalyptic number.

99641111 is a deficient number, since it is larger than the sum of its proper divisors (10738249).

99641111 is a wasteful number, since it uses less digits than its factorization.

99641111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3554.

The product of its digits is 1944, while the sum is 32.

The square root of 99641111 is about 9982.0394208799. The cubic root of 99641111 is about 463.6029460390.

The spelling of 99641111 in words is "ninety-nine million, six hundred forty-one thousand, one hundred eleven".