11098665 has 12 divisors (see below), whose sum is σ = 19237764. Its totient is φ = 5919264.

The previous prime is 11098663. The next prime is 11098669. The reversal of 11098665 is 56689011.

It can be written as a sum of positive squares in 2 ways, for example, as 7901721 + 3196944 = 2811^2 + 1788^2 .

It is not a de Polignac number, because 11098665 - 2¹ = 11098663 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (11098663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 123274 + ... + 123363.

It is an arithmetic number, because the mean of its divisors is an integer number (1603147).

Almost surely, 2^11098665 is an apocalyptic number.

11098665 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11098665 is a deficient number, since it is larger than the sum of its proper divisors (8139099).

11098665 is a wasteful number, since it uses less digits than its factorization.

11098665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246648 (or 246645 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 11098665 is about 3331.4658935670. The cubic root of 11098665 is about 223.0609671962.

The spelling of 11098665 in words is "eleven million, ninety-eight thousand, six hundred sixty-five".