11090861 has 8 divisors (see below), whose sum is σ = 11657184. Its totient is φ = 10538640.

The previous prime is 11090831. The next prime is 11090873. The reversal of 11090861 is 16809011.

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

It is a cyclic number.

It is not a de Polignac number, because 11090861 - 2¹⁸ = 10828717 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11090861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11090831) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1895 + ... + 5076.

It is an arithmetic number, because the mean of its divisors is an integer number (1457148).

Almost surely, 2^11090861 is an apocalyptic number.

It is an amenable number.

11090861 is a deficient number, since it is larger than the sum of its proper divisors (566323).

11090861 is an equidigital number, since it uses as much as digits as its factorization.

11090861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7051.

The product of its (nonzero) digits is 432, while the sum is 26.

The square root of 11090861 is about 3330.2944314279. The cubic root of 11090861 is about 223.0086733407.

Adding to 11090861 its reverse (16809011), we get a palindrome (27899872).

The spelling of 11090861 in words is "eleven million, ninety thousand, eight hundred sixty-one".