11985469 has 2 divisors, whose sum is σ = 11985470. Its totient is φ = 11985468.

The previous prime is 11985451. The next prime is 11985487. The reversal of 11985469 is 96458911.

It is a balanced prime because it is at equal distance from previous prime (11985451) and next prime (11985487).

It can be written as a sum of positive squares in only one way, i.e., 11985444 + 25 = 3462^2 + 5^2 .

It is a cyclic number.

It is not a de Polignac number, because 11985469 - 2⁹ = 11984957 is a prime.

It is a super-2 number, since 2×11985469² = 287302934299922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11985269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5992734 + 5992735.

It is an arithmetic number, because the mean of its divisors is an integer number (5992735).

Almost surely, 2^11985469 is an apocalyptic number.

It is an amenable number.

11985469 is a deficient number, since it is larger than the sum of its proper divisors (1).

11985469 is an equidigital number, since it uses as much as digits as its factorization.

11985469 is an evil number, because the sum of its binary digits is even.

The product of its digits is 77760, while the sum is 43.

The square root of 11985469 is about 3462.0036106278. The cubic root of 11985469 is about 228.8504009482.

The spelling of 11985469 in words is "eleven million, nine hundred eighty-five thousand, four hundred sixty-nine".