11789779 has 4 divisors (see below), whose sum is σ = 11801520. Its totient is φ = 11778040.

The previous prime is 11789773. The next prime is 11789803. The reversal of 11789779 is 97798711.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97798711 = 211 ⋅463501.

It is a cyclic number.

It is not a de Polignac number, because 11789779 - 2⁷ = 11789651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11789773) 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, 4207 + ... + 6424.

It is an arithmetic number, because the mean of its divisors is an integer number (2950380).

Almost surely, 2^11789779 is an apocalyptic number.

11789779 is a deficient number, since it is larger than the sum of its proper divisors (11741).

11789779 is a wasteful number, since it uses less digits than its factorization.

11789779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11740.

The product of its digits is 222264, while the sum is 49.

The square root of 11789779 is about 3433.6247610943. The cubic root of 11789779 is about 227.5980594059.

The spelling of 11789779 in words is "eleven million, seven hundred eighty-nine thousand, seven hundred seventy-nine".