84648787 has 2 divisors, whose sum is σ = 84648788. Its totient is φ = 84648786.

The previous prime is 84648779. The next prime is 84648847. The reversal of 84648787 is 78784648.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 84648787 - 2³ = 84648779 is a prime.

It is not a weakly prime, because it can be changed into another prime (84648757) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42324393 + 42324394.

It is an arithmetic number, because the mean of its divisors is an integer number (42324394).

Almost surely, 2^84648787 is an apocalyptic number.

84648787 is a deficient number, since it is larger than the sum of its proper divisors (1).

84648787 is an equidigital number, since it uses as much as digits as its factorization.

84648787 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2408448, while the sum is 52.

The square root of 84648787 is about 9200.4775419540. The cubic root of 84648787 is about 439.0765532927.

The spelling of 84648787 in words is "eighty-four million, six hundred forty-eight thousand, seven hundred eighty-seven".