11778339 has 4 divisors (see below), whose sum is σ = 15704456. Its totient is φ = 7852224.

The previous prime is 11778313. The next prime is 11778353. The reversal of 11778339 is 93387711.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93387711 = 3 ⋅31129237.

It is not a de Polignac number, because 11778339 - 2⁸ = 11778083 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11778297 and 11778306.

It is not an unprimeable number, because it can be changed into a prime (11778539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1963054 + ... + 1963059.

It is an arithmetic number, because the mean of its divisors is an integer number (3926114).

Almost surely, 2^11778339 is an apocalyptic number.

11778339 is a deficient number, since it is larger than the sum of its proper divisors (3926117).

11778339 is an equidigital number, since it uses as much as digits as its factorization.

11778339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3926116.

The product of its digits is 31752, while the sum is 39.

The square root of 11778339 is about 3431.9584787698. The cubic root of 11778339 is about 227.5244203549.

The spelling of 11778339 in words is "eleven million, seven hundred seventy-eight thousand, three hundred thirty-nine".