11850391 has 8 divisors (see below), whose sum is σ = 13647744. Its totient is φ = 10079160.

The previous prime is 11850379. The next prime is 11850407. The reversal of 11850391 is 19305811.

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

It is not a de Polignac number, because 11850391 - 2²¹ = 9753239 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 (11850341) 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 7 ways as a sum of consecutive naturals, for example, 5545 + ... + 7378.

It is an arithmetic number, because the mean of its divisors is an integer number (1705968).

Almost surely, 2^11850391 is an apocalyptic number.

11850391 is a deficient number, since it is larger than the sum of its proper divisors (1797353).

11850391 is a wasteful number, since it uses less digits than its factorization.

11850391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13061.

The product of its (nonzero) digits is 1080, while the sum is 28.

The square root of 11850391 is about 3442.4396871986. The cubic root of 11850391 is about 227.9874249246.

The spelling of 11850391 in words is "eleven million, eight hundred fifty thousand, three hundred ninety-one".