11939929 has 4 divisors (see below), whose sum is σ = 12325120. Its totient is φ = 11554740.

The previous prime is 11939911. The next prime is 11939947. The reversal of 11939929 is 92993911.

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 an interprime number because it is at equal distance from previous prime (11939911) and next prime (11939947).

It is a cyclic number.

It is not a de Polignac number, because 11939929 - 2¹¹ = 11937881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11939959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 192549 + ... + 192610.

It is an arithmetic number, because the mean of its divisors is an integer number (3081280).

Almost surely, 2^11939929 is an apocalyptic number.

It is an amenable number.

11939929 is a deficient number, since it is larger than the sum of its proper divisors (385191).

11939929 is an equidigital number, since it uses as much as digits as its factorization.

11939929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385190.

The product of its digits is 39366, while the sum is 43.

The square root of 11939929 is about 3455.4202349353. The cubic root of 11939929 is about 228.5601863332.

The spelling of 11939929 in words is "eleven million, nine hundred thirty-nine thousand, nine hundred twenty-nine".