80061439 has 2 divisors, whose sum is σ = 80061440. Its totient is φ = 80061438.

The previous prime is 80061433. The next prime is 80061461. The reversal of 80061439 is 93416008.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 80061439 - 2¹⁵ = 80028671 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 80061439.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80061433) 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, 40030719 + 40030720.

It is an arithmetic number, because the mean of its divisors is an integer number (40030720).

Almost surely, 2^80061439 is an apocalyptic number.

80061439 is a deficient number, since it is larger than the sum of its proper divisors (1).

80061439 is an equidigital number, since it uses as much as digits as its factorization.

80061439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 80061439 is about 8947.7057953422. The cubic root of 80061439 is about 430.9972150415.

The spelling of 80061439 in words is "eighty million, sixty-one thousand, four hundred thirty-nine".