11939239 has 8 divisors (see below), whose sum is σ = 13534640. Its totient is φ = 10440576.

The previous prime is 11939237. The next prime is 11939243. The reversal of 11939239 is 93293911.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11939239 - 2¹ = 11939237 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11939198 and 11939207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11939237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23922 + ... + 24415.

It is an arithmetic number, because the mean of its divisors is an integer number (1691830).

Almost surely, 2^11939239 is an apocalyptic number.

11939239 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

11939239 is a deficient number, since it is larger than the sum of its proper divisors (1595401).

11939239 is a wasteful number, since it uses less digits than its factorization.

11939239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48369.

The product of its digits is 13122, while the sum is 37.

The square root of 11939239 is about 3455.3203903546. The cubic root of 11939239 is about 228.5557834716. Note that the first 3 decimals are identical.

The spelling of 11939239 in words is "eleven million, nine hundred thirty-nine thousand, two hundred thirty-nine".