11648869 has 2 divisors, whose sum is σ = 11648870. Its totient is φ = 11648868.

The previous prime is 11648789. The next prime is 11648873. The reversal of 11648869 is 96884611.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6563844 + 5085025 = 2562^2 + 2255^2 .

It is a cyclic number.

It is not a de Polignac number, because 11648869 - 2¹¹ = 11646821 is a prime.

It is a super-2 number, since 2×11648869² = 271392297958322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11648069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5824434 + 5824435.

It is an arithmetic number, because the mean of its divisors is an integer number (5824435).

Almost surely, 2^11648869 is an apocalyptic number.

It is an amenable number.

11648869 is a deficient number, since it is larger than the sum of its proper divisors (1).

11648869 is an equidigital number, since it uses as much as digits as its factorization.

11648869 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 82944, while the sum is 43.

The square root of 11648869 is about 3413.0439493215. The cubic root of 11648869 is about 226.6876813946.

The spelling of 11648869 in words is "eleven million, six hundred forty-eight thousand, eight hundred sixty-nine".