11378387 has 4 divisors (see below), whose sum is σ = 11515560. Its totient is φ = 11241216.

The previous prime is 11378377. The next prime is 11378407. The reversal of 11378387 is 78387311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78387311 = 6203 ⋅12637.

It is a cyclic number.

It is not a de Polignac number, because 11378387 - 2¹⁰ = 11377363 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11378387.

It is not an unprimeable number, because it can be changed into a prime (11378347) 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, 68462 + ... + 68627.

It is an arithmetic number, because the mean of its divisors is an integer number (2878890).

Almost surely, 2^11378387 is an apocalyptic number.

11378387 is a deficient number, since it is larger than the sum of its proper divisors (137173).

11378387 is an equidigital number, since it uses as much as digits as its factorization.

11378387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137172.

The product of its digits is 28224, while the sum is 38.

The square root of 11378387 is about 3373.1864757229. The cubic root of 11378387 is about 224.9193917009.

The spelling of 11378387 in words is "eleven million, three hundred seventy-eight thousand, three hundred eighty-seven".