11303289 has 12 divisors (see below), whose sum is σ = 16438500. Its totient is φ = 7484064.

The previous prime is 11303287. The next prime is 11303291. The reversal of 11303289 is 98230311.

It is an interprime number because it is at equal distance from previous prime (11303287) and next prime (11303291).

It can be written as a sum of positive squares in 2 ways, for example, as 1587600 + 9715689 = 1260^2 + 3117^2 .

It is not a de Polignac number, because 11303289 - 2¹ = 11303287 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11303287) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2874 + ... + 5555.

It is an arithmetic number, because the mean of its divisors is an integer number (1369875).

Almost surely, 2^11303289 is an apocalyptic number.

It is an amenable number.

11303289 is a deficient number, since it is larger than the sum of its proper divisors (5135211).

11303289 is a wasteful number, since it uses less digits than its factorization.

11303289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8584 (or 8581 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 11303289 is about 3362.0364364474. The cubic root of 11303289 is about 224.4234721461.

The spelling of 11303289 in words is "eleven million, three hundred three thousand, two hundred eighty-nine".