11287469 has 4 divisors (see below), whose sum is σ = 11324544. Its totient is φ = 11250396.

The previous prime is 11287453. The next prime is 11287481. The reversal of 11287469 is 96478211.

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, and also an emirpimes, since its reverse is a distinct semiprime: 96478211 = 2609 ⋅36979.

It is a cyclic number.

It is not a de Polignac number, because 11287469 - 2⁴ = 11287453 is a prime.

It is a super-2 number, since 2×11287469² = 254813912851922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11287429) 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, 18077 + ... + 18690.

It is an arithmetic number, because the mean of its divisors is an integer number (2831136).

Almost surely, 2^11287469 is an apocalyptic number.

It is an amenable number.

11287469 is a deficient number, since it is larger than the sum of its proper divisors (37075).

11287469 is an equidigital number, since it uses as much as digits as its factorization.

11287469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37074.

The product of its digits is 24192, while the sum is 38.

The square root of 11287469 is about 3359.6828719390. The cubic root of 11287469 is about 224.3187227827.

The spelling of 11287469 in words is "eleven million, two hundred eighty-seven thousand, four hundred sixty-nine".