11980847 has 2 divisors, whose sum is σ = 11980848. Its totient is φ = 11980846.

The previous prime is 11980841. The next prime is 11980877. The reversal of 11980847 is 74808911.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11980847 - 2⁶ = 11980783 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11980847.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11980841) 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 as a sum of consecutive naturals, namely, 5990423 + 5990424.

It is an arithmetic number, because the mean of its divisors is an integer number (5990424).

Almost surely, 2^11980847 is an apocalyptic number.

11980847 is a deficient number, since it is larger than the sum of its proper divisors (1).

11980847 is an equidigital number, since it uses as much as digits as its factorization.

11980847 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16128, while the sum is 38.

The square root of 11980847 is about 3461.3360137380. The cubic root of 11980847 is about 228.8209796951.

The spelling of 11980847 in words is "eleven million, nine hundred eighty thousand, eight hundred forty-seven".