11869811 has 2 divisors, whose sum is σ = 11869812. Its totient is φ = 11869810.

The previous prime is 11869789. The next prime is 11869861. The reversal of 11869811 is 11896811.

11869811 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (11896811) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11869811 - 2¹⁴ = 11853427 is a prime.

It is a Chen prime.

11869811 is a strobogrammatic number because it is the same when read upside-down.

It is not a weakly prime, because it can be changed into another prime (11869861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5934905 + 5934906.

It is an arithmetic number, because the mean of its divisors is an integer number (5934906).

Almost surely, 2^11869811 is an apocalyptic number.

11869811 is a deficient number, since it is larger than the sum of its proper divisors (1).

11869811 is an equidigital number, since it uses as much as digits as its factorization.

11869811 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3456, while the sum is 35.

The square root of 11869811 is about 3445.2592065039. The cubic root of 11869811 is about 228.1118961886. Note that the first 3 decimals are identical.

Subtracting 11869811 from its reverse (11896811), we obtain a cube (27000 = 30³).

The spelling of 11869811 in words is "eleven million, eight hundred sixty-nine thousand, eight hundred eleven".