11098661 has 4 divisors (see below), whose sum is σ = 12684192. Its totient is φ = 9513132.

The previous prime is 11098639. The next prime is 11098663. The reversal of 11098661 is 16689011.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11098661 - 2¹⁰ = 11097637 is a prime.

It is a Duffinian number.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 792755 + ... + 792768.

It is an arithmetic number, because the mean of its divisors is an integer number (3171048).

Almost surely, 2^11098661 is an apocalyptic number.

It is an amenable number.

11098661 is a deficient number, since it is larger than the sum of its proper divisors (1585531).

11098661 is an equidigital number, since it uses as much as digits as its factorization.

11098661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1585530.

The product of its (nonzero) digits is 2592, while the sum is 32.

The square root of 11098661 is about 3331.4652932306. The cubic root of 11098661 is about 223.0609403989.

The spelling of 11098661 in words is "eleven million, ninety-eight thousand, six hundred sixty-one".