11427009 has 16 divisors (see below), whose sum is σ = 17599680. Its totient is φ = 6517760.

The previous prime is 11426993. The next prime is 11427011. The reversal of 11427009 is 90072411.

11427009 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 11427009 - 2⁴ = 11426993 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11427009.

It is not an unprimeable number, because it can be changed into a prime (11427029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9624 + ... + 10745.

It is an arithmetic number, because the mean of its divisors is an integer number (1099980).

Almost surely, 2^11427009 is an apocalyptic number.

It is an amenable number.

11427009 is a deficient number, since it is larger than the sum of its proper divisors (6172671).

11427009 is a wasteful number, since it uses less digits than its factorization.

11427009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20400.

The product of its (nonzero) digits is 504, while the sum is 24.

The square root of 11427009 is about 3380.3859247133. The cubic root of 11427009 is about 225.2393108100.

The spelling of 11427009 in words is "eleven million, four hundred twenty-seven thousand, nine".