11999653 has 2 divisors, whose sum is σ = 11999654. Its totient is φ = 11999652.

The previous prime is 11999563. The next prime is 11999657. The reversal of 11999653 is 35699911.

Together with previous prime (11999563) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11512449 + 487204 = 3393^2 + 698^2 .

It is a cyclic number.

It is not a de Polignac number, because 11999653 - 2¹³ = 11991461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11999657) 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, 5999826 + 5999827.

It is an arithmetic number, because the mean of its divisors is an integer number (5999827).

Almost surely, 2^11999653 is an apocalyptic number.

It is an amenable number.

11999653 is a deficient number, since it is larger than the sum of its proper divisors (1).

11999653 is an equidigital number, since it uses as much as digits as its factorization.

11999653 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 65610, while the sum is 43.

The square root of 11999653 is about 3464.0515296398. The cubic root of 11999653 is about 228.9406417347.

The spelling of 11999653 in words is "eleven million, nine hundred ninety-nine thousand, six hundred fifty-three".