11789281 has 8 divisors (see below), whose sum is σ = 13658624. Its totient is φ = 9966240.

The previous prime is 11789257. The next prime is 11789293. The reversal of 11789281 is 18298711.

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 11789281 - 2¹³ = 11781089 is a prime.

It is a super-2 number, since 2×11789281² = 277974292993922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11789281.

It is not an unprimeable number, because it can be changed into a prime (11789221) 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, 11025 + ... + 12046.

It is an arithmetic number, because the mean of its divisors is an integer number (1707328).

Almost surely, 2^11789281 is an apocalyptic number.

It is an amenable number.

11789281 is a deficient number, since it is larger than the sum of its proper divisors (1869343).

11789281 is an equidigital number, since it uses as much as digits as its factorization.

11789281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23151.

The product of its digits is 8064, while the sum is 37.

The square root of 11789281 is about 3433.5522422121. The cubic root of 11789281 is about 227.5948547818.

It can be divided in two parts, 117 and 89281, that added together give a palindrome (89398).

The spelling of 11789281 in words is "eleven million, seven hundred eighty-nine thousand, two hundred eighty-one".