11969429 has 4 divisors (see below), whose sum is σ = 12055680. Its totient is φ = 11883180.

The previous prime is 11969423. The next prime is 11969459. The reversal of 11969429 is 92496911.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11969429 - 2⁴ = 11969413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11969423) 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 in 3 ways as a sum of consecutive naturals, for example, 42917 + ... + 43194.

It is an arithmetic number, because the mean of its divisors is an integer number (3013920).

Almost surely, 2^11969429 is an apocalyptic number.

It is an amenable number.

11969429 is a deficient number, since it is larger than the sum of its proper divisors (86251).

11969429 is an equidigital number, since it uses as much as digits as its factorization.

11969429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86250.

The product of its digits is 34992, while the sum is 41.

The square root of 11969429 is about 3459.6862574517. The cubic root of 11969429 is about 228.7482661837.

The spelling of 11969429 in words is "eleven million, nine hundred sixty-nine thousand, four hundred twenty-nine".