11779387 has 4 divisors (see below), whose sum is σ = 11809456. Its totient is φ = 11749320.

The previous prime is 11779367. The next prime is 11779393. The reversal of 11779387 is 78397711.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78397711 = 7 ⋅11199673.

It is a cyclic number.

It is not a de Polignac number, because 11779387 - 2¹⁵ = 11746619 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11779367) 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, 14439 + ... + 15232.

It is an arithmetic number, because the mean of its divisors is an integer number (2952364).

Almost surely, 2^11779387 is an apocalyptic number.

11779387 is a deficient number, since it is larger than the sum of its proper divisors (30069).

11779387 is an equidigital number, since it uses as much as digits as its factorization.

11779387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30068.

The product of its digits is 74088, while the sum is 43.

The square root of 11779387 is about 3432.1111578735. Note that the first 4 decimals coincide. The cubic root of 11779387 is about 227.5311682933.

The spelling of 11779387 in words is "eleven million, seven hundred seventy-nine thousand, three hundred eighty-seven".