80982647 has 2 divisors, whose sum is σ = 80982648. Its totient is φ = 80982646.

The previous prime is 80982637. The next prime is 80982653. The reversal of 80982647 is 74628908.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80982647 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 80982598 and 80982607.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80982637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40491323 + 40491324.

It is an arithmetic number, because the mean of its divisors is an integer number (40491324).

Almost surely, 2^80982647 is an apocalyptic number.

80982647 is a deficient number, since it is larger than the sum of its proper divisors (1).

80982647 is an equidigital number, since it uses as much as digits as its factorization.

80982647 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 193536, while the sum is 44.

The square root of 80982647 is about 8999.0358928054. The cubic root of 80982647 is about 432.6439709141.

The spelling of 80982647 in words is "eighty million, nine hundred eighty-two thousand, six hundred forty-seven".