80018447 has 2 divisors, whose sum is σ = 80018448. Its totient is φ = 80018446.

The previous prime is 80018423. The next prime is 80018459. The reversal of 80018447 is 74481008.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 80018447 - 2²⁴ = 63241231 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80018417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40009223 + 40009224.

It is an arithmetic number, because the mean of its divisors is an integer number (40009224).

Almost surely, 2^80018447 is an apocalyptic number.

80018447 is a deficient number, since it is larger than the sum of its proper divisors (1).

80018447 is an equidigital number, since it uses as much as digits as its factorization.

80018447 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7168, while the sum is 32.

The square root of 80018447 is about 8945.3030692090. The cubic root of 80018447 is about 430.9200545084.

The spelling of 80018447 in words is "eighty million, eighteen thousand, four hundred forty-seven".