11640027 has 16 divisors (see below), whose sum is σ = 18671360. Its totient is φ = 6301152.

The previous prime is 11640007. The next prime is 11640061. The reversal of 11640027 is 72004611.

It is not a de Polignac number, because 11640027 - 2⁶ = 11639963 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11639985 and 11640012.

It is not an unprimeable number, because it can be changed into a prime (11640007) 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, 14188 + ... + 14985.

It is an arithmetic number, because the mean of its divisors is an integer number (1166960).

Almost surely, 2^11640027 is an apocalyptic number.

11640027 is a deficient number, since it is larger than the sum of its proper divisors (7031333).

11640027 is a wasteful number, since it uses less digits than its factorization.

11640027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29202.

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 11640027 is about 3411.7483787642. The cubic root of 11640027 is about 226.6303115953.

Adding to 11640027 its reverse (72004611), we get a palindrome (83644638).

The spelling of 11640027 in words is "eleven million, six hundred forty thousand, twenty-seven".