80736847 has 2 divisors, whose sum is σ = 80736848. Its totient is φ = 80736846.

The previous prime is 80736827. The next prime is 80736881. The reversal of 80736847 is 74863708.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80736847 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80736827) 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, 40368423 + 40368424.

It is an arithmetic number, because the mean of its divisors is an integer number (40368424).

Almost surely, 2^80736847 is an apocalyptic number.

80736847 is a deficient number, since it is larger than the sum of its proper divisors (1).

80736847 is an equidigital number, since it uses as much as digits as its factorization.

80736847 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 225792, while the sum is 43.

The square root of 80736847 is about 8985.3684955042. The cubic root of 80736847 is about 432.2058043600.

The spelling of 80736847 in words is "eighty million, seven hundred thirty-six thousand, eight hundred forty-seven".