11640403 has 2 divisors, whose sum is σ = 11640404. Its totient is φ = 11640402.

The previous prime is 11640347. The next prime is 11640457. The reversal of 11640403 is 30404611.

It is a happy number.

11640403 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (30404611) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11640403 - 2²¹ = 9543251 is a prime.

It is not a weakly prime, because it can be changed into another prime (11640463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5820201 + 5820202.

It is an arithmetic number, because the mean of its divisors is an integer number (5820202).

Almost surely, 2^11640403 is an apocalyptic number.

11640403 is a deficient number, since it is larger than the sum of its proper divisors (1).

11640403 is an equidigital number, since it uses as much as digits as its factorization.

11640403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 11640403 is about 3411.8034820312. The cubic root of 11640403 is about 226.6327517981.

The spelling of 11640403 in words is "eleven million, six hundred forty thousand, four hundred three".