11998043 has 2 divisors, whose sum is σ = 11998044. Its totient is φ = 11998042.

The previous prime is 11998033. The next prime is 11998067. The reversal of 11998043 is 34089911.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11998043 - 2⁸ = 11997787 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 11997994 and 11998012.

It is not a weakly prime, because it can be changed into another prime (11998013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5999021 + 5999022.

It is an arithmetic number, because the mean of its divisors is an integer number (5999022).

Almost surely, 2^11998043 is an apocalyptic number.

11998043 is a deficient number, since it is larger than the sum of its proper divisors (1).

11998043 is an equidigital number, since it uses as much as digits as its factorization.

11998043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 35.

The square root of 11998043 is about 3463.8191350011. The cubic root of 11998043 is about 228.9304022464.

The spelling of 11998043 in words is "eleven million, nine hundred ninety-eight thousand, forty-three".