11986429 has 24 divisors (see below), whose sum is σ = 15525888. Its totient is φ = 9162720.

The previous prime is 11986417. The next prime is 11986451. The reversal of 11986429 is 92468911.

It is not a de Polignac number, because 11986429 - 2⁹ = 11985917 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11986391 and 11986400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11986529) 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 in 23 ways as a sum of consecutive naturals, for example, 19444 + ... + 20050.

It is an arithmetic number, because the mean of its divisors is an integer number (646912).

Almost surely, 2^11986429 is an apocalyptic number.

It is an amenable number.

11986429 is a deficient number, since it is larger than the sum of its proper divisors (3539459).

11986429 is a wasteful number, since it uses less digits than its factorization.

11986429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 665 (or 658 counting only the distinct ones).

The product of its digits is 31104, while the sum is 40.

The square root of 11986429 is about 3462.1422558872. The cubic root of 11986429 is about 228.8565108612.

The spelling of 11986429 in words is "eleven million, nine hundred eighty-six thousand, four hundred twenty-nine".