11778479 has 2 divisors, whose sum is σ = 11778480. Its totient is φ = 11778478.

The previous prime is 11778463. The next prime is 11778491. The reversal of 11778479 is 97487711.

It is a happy number.

11778479 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11778479 - 2⁴ = 11778463 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11778409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5889239 + 5889240.

It is an arithmetic number, because the mean of its divisors is an integer number (5889240).

Almost surely, 2^11778479 is an apocalyptic number.

11778479 is a deficient number, since it is larger than the sum of its proper divisors (1).

11778479 is an equidigital number, since it uses as much as digits as its factorization.

11778479 is an evil number, because the sum of its binary digits is even.

The product of its digits is 98784, while the sum is 44.

The square root of 11778479 is about 3431.9788752264. The cubic root of 11778479 is about 227.5253218202.

The spelling of 11778479 in words is "eleven million, seven hundred seventy-eight thousand, four hundred seventy-nine".