84480647 has 2 divisors, whose sum is σ = 84480648. Its totient is φ = 84480646.

The previous prime is 84480607. The next prime is 84480653. The reversal of 84480647 is 74608448.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 84480647 - 2¹⁰ = 84479623 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84480607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42240323 + 42240324.

It is an arithmetic number, because the mean of its divisors is an integer number (42240324).

Almost surely, 2^84480647 is an apocalyptic number.

84480647 is a deficient number, since it is larger than the sum of its proper divisors (1).

84480647 is an equidigital number, since it uses as much as digits as its factorization.

84480647 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 172032, while the sum is 41.

The square root of 84480647 is about 9191.3354307195. The cubic root of 84480647 is about 438.7856443527.

The spelling of 84480647 in words is "eighty-four million, four hundred eighty thousand, six hundred forty-seven".