11820357 has 16 divisors (see below), whose sum is σ = 17712000. Its totient is φ = 7790112.

The previous prime is 11820349. The next prime is 11820407. The reversal of 11820357 is 75302811.

11820357 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11820357 - 2³ = 11820349 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 11820357.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11820257) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57 + ... + 4862.

It is an arithmetic number, because the mean of its divisors is an integer number (1107000).

Almost surely, 2^11820357 is an apocalyptic number.

It is an amenable number.

11820357 is a deficient number, since it is larger than the sum of its proper divisors (5891643).

11820357 is an equidigital number, since it uses as much as digits as its factorization.

11820357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5017 (or 5011 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The square root of 11820357 is about 3438.0746065203. The cubic root of 11820357 is about 227.7946558362.

The spelling of 11820357 in words is "eleven million, eight hundred twenty thousand, three hundred fifty-seven".