11369391 has 16 divisors (see below), whose sum is σ = 17408640. Its totient is φ = 6527520.

The previous prime is 11369381. The next prime is 11369399. The reversal of 11369391 is 19396311.

It is a happy number.

It is not a de Polignac number, because 11369391 - 2¹⁰ = 11368367 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11369399) 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 15 ways as a sum of consecutive naturals, for example, 8440 + ... + 9693.

It is an arithmetic number, because the mean of its divisors is an integer number (1088040).

Almost surely, 2^11369391 is an apocalyptic number.

11369391 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11369391 is a deficient number, since it is larger than the sum of its proper divisors (6039249).

11369391 is a wasteful number, since it uses less digits than its factorization.

11369391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18166.

The product of its digits is 4374, while the sum is 33.

The square root of 11369391 is about 3371.8527547922. The cubic root of 11369391 is about 224.8601006865.

The spelling of 11369391 in words is "eleven million, three hundred sixty-nine thousand, three hundred ninety-one".