11980547 has 2 divisors, whose sum is σ = 11980548. Its totient is φ = 11980546.

The previous prime is 11980543. The next prime is 11980559. The reversal of 11980547 is 74508911.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11980547 - 2² = 11980543 is a prime.

It is not a weakly prime, because it can be changed into another prime (11980543) 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, 5990273 + 5990274.

It is an arithmetic number, because the mean of its divisors is an integer number (5990274).

Almost surely, 2^11980547 is an apocalyptic number.

11980547 is a deficient number, since it is larger than the sum of its proper divisors (1).

11980547 is an equidigital number, since it uses as much as digits as its factorization.

11980547 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080, while the sum is 35.

The square root of 11980547 is about 3461.2926775989. The cubic root of 11980547 is about 228.8190697893.

The spelling of 11980547 in words is "eleven million, nine hundred eighty thousand, five hundred forty-seven".