80406239 has 2 divisors, whose sum is σ = 80406240. Its totient is φ = 80406238.

The previous prime is 80406223. The next prime is 80406301. The reversal of 80406239 is 93260408.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 80406239 - 2⁴ = 80406223 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80406539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40203119 + 40203120.

It is an arithmetic number, because the mean of its divisors is an integer number (40203120).

Almost surely, 2^80406239 is an apocalyptic number.

80406239 is a deficient number, since it is larger than the sum of its proper divisors (1).

80406239 is an equidigital number, since it uses as much as digits as its factorization.

80406239 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 80406239 is about 8966.9526038672. The cubic root of 80406239 is about 431.6150531022.

The spelling of 80406239 in words is "eighty million, four hundred six thousand, two hundred thirty-nine".