11857941 has 8 divisors (see below), whose sum is σ = 17567360. Its totient is φ = 7905276.

The previous prime is 11857931. The next prime is 11857969. The reversal of 11857941 is 14975811.

It is not a de Polignac number, because 11857941 - 2⁶ = 11857877 is a prime.

It is a super-2 number, since 2×11857941² = 281221529518962, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11857896 and 11857905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11857931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 219565 + ... + 219618.

It is an arithmetic number, because the mean of its divisors is an integer number (2195920).

Almost surely, 2^11857941 is an apocalyptic number.

It is an amenable number.

11857941 is a deficient number, since it is larger than the sum of its proper divisors (5709419).

11857941 is an equidigital number, since it uses as much as digits as its factorization.

11857941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 439192 (or 439186 counting only the distinct ones).

The product of its digits is 10080, while the sum is 36.

The square root of 11857941 is about 3443.5361185851. The cubic root of 11857941 is about 228.0358323185.

The spelling of 11857941 in words is "eleven million, eight hundred fifty-seven thousand, nine hundred forty-one".