11685379 has 4 divisors (see below), whose sum is σ = 11957176. Its totient is φ = 11413584.

The previous prime is 11685337. The next prime is 11685383. The reversal of 11685379 is 97358611.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97358611 = 7 ⋅13908373.

It is a cyclic number.

It is not a de Polignac number, because 11685379 - 2¹⁷ = 11554307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11685319) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 135834 + ... + 135919.

It is an arithmetic number, because the mean of its divisors is an integer number (2989294).

Almost surely, 2^11685379 is an apocalyptic number.

11685379 is a deficient number, since it is larger than the sum of its proper divisors (271797).

11685379 is an equidigital number, since it uses as much as digits as its factorization.

11685379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271796.

The product of its digits is 45360, while the sum is 40.

The square root of 11685379 is about 3418.3883629570. The cubic root of 11685379 is about 226.9242633222.

The spelling of 11685379 in words is "eleven million, six hundred eighty-five thousand, three hundred seventy-nine".