11039391 has 12 divisors (see below), whose sum is σ = 17395560. Its totient is φ = 6690480.

The previous prime is 11039387. The next prime is 11039419. The reversal of 11039391 is 19393011.

It is not a de Polignac number, because 11039391 - 2² = 11039387 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11039321) 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 11 ways as a sum of consecutive naturals, for example, 55656 + ... + 55853.

It is an arithmetic number, because the mean of its divisors is an integer number (1449630).

Almost surely, 2^11039391 is an apocalyptic number.

11039391 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11039391 is a deficient number, since it is larger than the sum of its proper divisors (6356169).

11039391 is a wasteful number, since it uses less digits than its factorization.

11039391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111526 (or 111523 counting only the distinct ones).

The product of its (nonzero) digits is 729, while the sum is 27.

The square root of 11039391 is about 3322.5579001727. The cubic root of 11039391 is about 222.6631618944.

The spelling of 11039391 in words is "eleven million, thirty-nine thousand, three hundred ninety-one".