80039447 has 2 divisors, whose sum is σ = 80039448. Its totient is φ = 80039446.

The previous prime is 80039431. The next prime is 80039483. The reversal of 80039447 is 74493008.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 80039447 - 2⁴ = 80039431 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80039497) 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, 40019723 + 40019724.

It is an arithmetic number, because the mean of its divisors is an integer number (40019724).

Almost surely, 2^80039447 is an apocalyptic number.

80039447 is a deficient number, since it is larger than the sum of its proper divisors (1).

80039447 is an equidigital number, since it uses as much as digits as its factorization.

80039447 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 80039447 is about 8946.4767925704. The cubic root of 80039447 is about 430.9577480235.

The spelling of 80039447 in words is "eighty million, thirty-nine thousand, four hundred forty-seven".