11789947 has 6 divisors (see below), whose sum is σ = 12766812. Its totient is φ = 10882872.

The previous prime is 11789941. The next prime is 11789963. The reversal of 11789947 is 74998711.

It is not a de Polignac number, because 11789947 - 2¹¹ = 11787899 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11789897 and 11789906.

It is not an unprimeable number, because it can be changed into a prime (11789941) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 34713 + ... + 35050.

It is an arithmetic number, because the mean of its divisors is an integer number (2127802).

Almost surely, 2^11789947 is an apocalyptic number.

11789947 is a deficient number, since it is larger than the sum of its proper divisors (976865).

11789947 is an equidigital number, since it uses as much as digits as its factorization.

11789947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69789 (or 69776 counting only the distinct ones).

The product of its digits is 127008, while the sum is 46.

The square root of 11789947 is about 3433.6492249500. The cubic root of 11789947 is about 227.5991404635.

The spelling of 11789947 in words is "eleven million, seven hundred eighty-nine thousand, nine hundred forty-seven".