11640623 has 2 divisors, whose sum is σ = 11640624. Its totient is φ = 11640622.

The previous prime is 11640619. The next prime is 11640649. The reversal of 11640623 is 32604611.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11640623 - 2² = 11640619 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11640613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5820311 + 5820312.

It is an arithmetic number, because the mean of its divisors is an integer number (5820312).

Almost surely, 2^11640623 is an apocalyptic number.

11640623 is a deficient number, since it is larger than the sum of its proper divisors (1).

11640623 is an equidigital number, since it uses as much as digits as its factorization.

11640623 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 11640623 is about 3411.8357228917. The cubic root of 11640623 is about 226.6341795520.

The spelling of 11640623 in words is "eleven million, six hundred forty thousand, six hundred twenty-three".