84648847 has 2 divisors, whose sum is σ = 84648848. Its totient is φ = 84648846.

The previous prime is 84648787. The next prime is 84648871. The reversal of 84648847 is 74884648.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 84648847 - 2⁷ = 84648719 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 84648847.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84688847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42324423 + 42324424.

It is an arithmetic number, because the mean of its divisors is an integer number (42324424).

Almost surely, 2^84648847 is an apocalyptic number.

84648847 is a deficient number, since it is larger than the sum of its proper divisors (1).

84648847 is an equidigital number, since it uses as much as digits as its factorization.

84648847 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1376256, while the sum is 49.

The square root of 84648847 is about 9200.4808026537. The cubic root of 84648847 is about 439.0766570335.

The spelling of 84648847 in words is "eighty-four million, six hundred forty-eight thousand, eight hundred forty-seven".