11660623 has 16 divisors (see below), whose sum is σ = 14001120. Its totient is φ = 9593856.

The previous prime is 11660603. The next prime is 11660629. The reversal of 11660623 is 32606611.

It is a cyclic number.

It is not a de Polignac number, because 11660623 - 2²¹ = 9563471 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11660629) 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, 2811 + ... + 5587.

It is an arithmetic number, because the mean of its divisors is an integer number (875070).

Almost surely, 2^11660623 is an apocalyptic number.

11660623 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

11660623 is a deficient number, since it is larger than the sum of its proper divisors (2340497).

11660623 is a wasteful number, since it uses less digits than its factorization.

11660623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2826.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 11660623 is about 3414.7654385038. The cubic root of 11660623 is about 226.7639002770.

The spelling of 11660623 in words is "eleven million, six hundred sixty thousand, six hundred twenty-three".