11894489 has 4 divisors (see below), whose sum is σ = 11946660. Its totient is φ = 11842320.

The previous prime is 11894479. The next prime is 11894497. The reversal of 11894489 is 98449811.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 98449811 = 19 ⋅5181569.

It can be written as a sum of positive squares in 2 ways, for example, as 5442889 + 6451600 = 2333^2 + 2540^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11894489 is a prime.

It is a super-3 number, since 3×11894489³ (a number of 22 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11894479) 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, 25742 + ... + 26199.

It is an arithmetic number, because the mean of its divisors is an integer number (2986665).

Almost surely, 2^11894489 is an apocalyptic number.

It is an amenable number.

11894489 is a deficient number, since it is larger than the sum of its proper divisors (52171).

11894489 is an equidigital number, since it uses as much as digits as its factorization.

11894489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52170.

The product of its digits is 82944, while the sum is 44.

The square root of 11894489 is about 3448.8387900857. The cubic root of 11894489 is about 228.2698725493.

The spelling of 11894489 in words is "eleven million, eight hundred ninety-four thousand, four hundred eighty-nine".