11109487 has 2 divisors, whose sum is σ = 11109488. Its totient is φ = 11109486.

The previous prime is 11109479. The next prime is 11109491. The reversal of 11109487 is 78490111.

11109487 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11109487 - 2³ = 11109479 is a prime.

It is a super-3 number, since 3×11109487³ (a number of 22 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11109187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5554743 + 5554744.

It is an arithmetic number, because the mean of its divisors is an integer number (5554744).

Almost surely, 2^11109487 is an apocalyptic number.

11109487 is a deficient number, since it is larger than the sum of its proper divisors (1).

11109487 is an equidigital number, since it uses as much as digits as its factorization.

11109487 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 31.

The square root of 11109487 is about 3333.0897077637. The cubic root of 11109487 is about 223.1334438294.

Adding to 11109487 its reverse (78490111), we get a palindrome (89599598).

The spelling of 11109487 in words is "eleven million, one hundred nine thousand, four hundred eighty-seven".