84985321 has 2 divisors, whose sum is σ = 84985322. Its totient is φ = 84985320.

The previous prime is 84985301. The next prime is 84985331. The reversal of 84985321 is 12358948.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 84437721 + 547600 = 9189^2 + 740^2 .

It is a cyclic number.

It is not a de Polignac number, because 84985321 - 2¹¹ = 84983273 is a prime.

It is not a weakly prime, because it can be changed into another prime (84985301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42492660 + 42492661.

It is an arithmetic number, because the mean of its divisors is an integer number (42492661).

Almost surely, 2^84985321 is an apocalyptic number.

It is an amenable number.

84985321 is a deficient number, since it is larger than the sum of its proper divisors (1).

84985321 is an equidigital number, since it uses as much as digits as its factorization.

84985321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 69120, while the sum is 40.

The square root of 84985321 is about 9218.7483423727. The cubic root of 84985321 is about 439.6576555380.

The spelling of 84985321 in words is "eighty-four million, nine hundred eighty-five thousand, three hundred twenty-one".