11861693 has 2 divisors, whose sum is σ = 11861694. Its totient is φ = 11861692.

The previous prime is 11861687. The next prime is 11861701. The reversal of 11861693 is 39616811.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10936249 + 925444 = 3307^2 + 962^2 .

It is a cyclic number.

It is not a de Polignac number, because 11861693 - 2¹⁰ = 11860669 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11861683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5930846 + 5930847.

It is an arithmetic number, because the mean of its divisors is an integer number (5930847).

Almost surely, 2^11861693 is an apocalyptic number.

It is an amenable number.

11861693 is a deficient number, since it is larger than the sum of its proper divisors (1).

11861693 is an equidigital number, since it uses as much as digits as its factorization.

11861693 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7776, while the sum is 35.

The square root of 11861693 is about 3444.0808643236. The cubic root of 11861693 is about 228.0598809066.

The spelling of 11861693 in words is "eleven million, eight hundred sixty-one thousand, six hundred ninety-three".