11329287 has 4 divisors (see below), whose sum is σ = 15105720. Its totient is φ = 7552856.

The previous prime is 11329261. The next prime is 11329319. The reversal of 11329287 is 78292311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78292311 = 3 ⋅26097437.

It is a cyclic number.

It is not a de Polignac number, because 11329287 - 2¹⁸ = 11067143 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11329207) 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, 1888212 + ... + 1888217.

It is an arithmetic number, because the mean of its divisors is an integer number (3776430).

Almost surely, 2^11329287 is an apocalyptic number.

11329287 is a deficient number, since it is larger than the sum of its proper divisors (3776433).

11329287 is an equidigital number, since it uses as much as digits as its factorization.

11329287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3776432.

The product of its digits is 6048, while the sum is 33.

The square root of 11329287 is about 3365.9006224189. The cubic root of 11329287 is about 224.5954012750.

The spelling of 11329287 in words is "eleven million, three hundred twenty-nine thousand, two hundred eighty-seven".