84655729 has 2 divisors, whose sum is σ = 84655730. Its totient is φ = 84655728.

The previous prime is 84655721. The next prime is 84655751. The reversal of 84655729 is 92755648.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 58369600 + 26286129 = 7640^2 + 5127^2 .

It is a cyclic number.

It is not a de Polignac number, because 84655729 - 2³ = 84655721 is a prime.

It is not a weakly prime, because it can be changed into another prime (84655721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42327864 + 42327865.

It is an arithmetic number, because the mean of its divisors is an integer number (42327865).

Almost surely, 2^84655729 is an apocalyptic number.

It is an amenable number.

84655729 is a deficient number, since it is larger than the sum of its proper divisors (1).

84655729 is an equidigital number, since it uses as much as digits as its factorization.

84655729 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 604800, while the sum is 46.

The square root of 84655729 is about 9200.8547972457. The cubic root of 84655729 is about 439.0885557727.

The spelling of 84655729 in words is "eighty-four million, six hundred fifty-five thousand, seven hundred twenty-nine".