11005487 has 8 divisors (see below), whose sum is σ = 11228976. Its totient is φ = 10783872.

The previous prime is 11005483. The next prime is 11005493. The reversal of 11005487 is 78450011.

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 11005487 - 2² = 11005483 is a prime.

It is a super-2 number, since 2×11005487² = 242241488214338, 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 (11005483) 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, 18263 + ... + 18855.

It is an arithmetic number, because the mean of its divisors is an integer number (1403622).

Almost surely, 2^11005487 is an apocalyptic number.

11005487 is a deficient number, since it is larger than the sum of its proper divisors (223489).

11005487 is an equidigital number, since it uses as much as digits as its factorization.

11005487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 937.

The product of its (nonzero) digits is 1120, while the sum is 26.

The square root of 11005487 is about 3317.4518835998. The cubic root of 11005487 is about 222.4349816336.

Adding to 11005487 its reverse (78450011), we get a palindrome (89455498).

The spelling of 11005487 in words is "eleven million, five thousand, four hundred eighty-seven".