11280917 has 4 divisors (see below), whose sum is σ = 11322816. Its totient is φ = 11239020.

The previous prime is 11280883. The next prime is 11280937. The reversal of 11280917 is 71908211.

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 11280917 - 2¹⁶ = 11215381 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 11280917.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11280937) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20543 + ... + 21084.

It is an arithmetic number, because the mean of its divisors is an integer number (2830704).

Almost surely, 2^11280917 is an apocalyptic number.

It is an amenable number.

11280917 is a deficient number, since it is larger than the sum of its proper divisors (41899).

11280917 is an equidigital number, since it uses as much as digits as its factorization.

11280917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41898.

The product of its (nonzero) digits is 1008, while the sum is 29.

The square root of 11280917 is about 3358.7076383633. The cubic root of 11280917 is about 224.2753111982.

The spelling of 11280917 in words is "eleven million, two hundred eighty thousand, nine hundred seventeen".