11649623 has 2 divisors, whose sum is σ = 11649624. Its totient is φ = 11649622.

The previous prime is 11649613. The next prime is 11649629. The reversal of 11649623 is 32694611.

11649623 is digitally balanced in base 2, because in such base 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 11649623 - 2⁸ = 11649367 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11649623.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11649629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5824811 + 5824812.

It is an arithmetic number, because the mean of its divisors is an integer number (5824812).

Almost surely, 2^11649623 is an apocalyptic number.

11649623 is a deficient number, since it is larger than the sum of its proper divisors (1).

11649623 is an equidigital number, since it uses as much as digits as its factorization.

11649623 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7776, while the sum is 32.

The square root of 11649623 is about 3413.1544061176. The cubic root of 11649623 is about 226.6925722506.

The spelling of 11649623 in words is "eleven million, six hundred forty-nine thousand, six hundred twenty-three".