80829647 has 2 divisors, whose sum is σ = 80829648. Its totient is φ = 80829646.

The previous prime is 80829607. The next prime is 80829653. The reversal of 80829647 is 74692808.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 80829647 - 2²⁴ = 64052431 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 80829598 and 80829607.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80829607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40414823 + 40414824.

It is an arithmetic number, because the mean of its divisors is an integer number (40414824).

Almost surely, 2^80829647 is an apocalyptic number.

80829647 is a deficient number, since it is larger than the sum of its proper divisors (1).

80829647 is an equidigital number, since it uses as much as digits as its factorization.

80829647 is an odious number, because the sum of its binary digits is odd.

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

The square root of 80829647 is about 8990.5309631857. The cubic root of 80829647 is about 432.3713353114.

The spelling of 80829647 in words is "eighty million, eight hundred twenty-nine thousand, six hundred forty-seven".