11730391 has 16 divisors (see below), whose sum is σ = 13651200. Its totient is φ = 9998208.

The previous prime is 11730377. The next prime is 11730409. The reversal of 11730391 is 19303711.

It is a cyclic number.

It is not a de Polignac number, because 11730391 - 2⁷ = 11730263 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 (11730311) 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, 6640 + ... + 8218.

It is an arithmetic number, because the mean of its divisors is an integer number (853200).

Almost surely, 2^11730391 is an apocalyptic number.

11730391 is a deficient number, since it is larger than the sum of its proper divisors (1920809).

11730391 is a wasteful number, since it uses less digits than its factorization.

11730391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1638.

The product of its (nonzero) digits is 567, while the sum is 25.

The square root of 11730391 is about 3424.9658392457. The cubic root of 11730391 is about 227.2152602389.

It can be divided in two parts, 11730 and 391, that added together give a palindrome (12121).

The spelling of 11730391 in words is "eleven million, seven hundred thirty thousand, three hundred ninety-one".