11785213 has 8 divisors (see below), whose sum is σ = 12892320. Its totient is φ = 10684080.

The previous prime is 11785211. The next prime is 11785217. The reversal of 11785213 is 31258711.

It is the 1402-nd star number.

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

It is not a de Polignac number, because 11785213 - 2¹ = 11785211 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 (11785211) 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 7 ways as a sum of consecutive naturals, for example, 3331 + ... + 5887.

It is an arithmetic number, because the mean of its divisors is an integer number (1611540).

Almost surely, 2^11785213 is an apocalyptic number.

It is an amenable number.

11785213 is a deficient number, since it is larger than the sum of its proper divisors (1107107).

11785213 is a wasteful number, since it uses less digits than its factorization.

11785213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2987.

The product of its digits is 1680, while the sum is 28.

The square root of 11785213 is about 3432.9598016872. The cubic root of 11785213 is about 227.5686738699.

The spelling of 11785213 in words is "eleven million, seven hundred eighty-five thousand, two hundred thirteen".