84528047 has 2 divisors, whose sum is σ = 84528048. Its totient is φ = 84528046.

The previous prime is 84527987. The next prime is 84528053. The reversal of 84528047 is 74082548.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 84528047 - 2⁶ = 84527983 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 84528047.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84528247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42264023 + 42264024.

It is an arithmetic number, because the mean of its divisors is an integer number (42264024).

Almost surely, 2^84528047 is an apocalyptic number.

84528047 is a deficient number, since it is larger than the sum of its proper divisors (1).

84528047 is an equidigital number, since it uses as much as digits as its factorization.

84528047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 71680, while the sum is 38.

The square root of 84528047 is about 9193.9135845406. The cubic root of 84528047 is about 438.8676929309.

The spelling of 84528047 in words is "eighty-four million, five hundred twenty-eight thousand, forty-seven".