84362209 has 2 divisors, whose sum is σ = 84362210. Its totient is φ = 84362208.

The previous prime is 84362197. The next prime is 84362219. The reversal of 84362209 is 90226348.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 77088400 + 7273809 = 8780^2 + 2697^2 .

It is a cyclic number.

It is not a de Polignac number, because 84362209 - 2⁷ = 84362081 is a prime.

It is not a weakly prime, because it can be changed into another prime (84362219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42181104 + 42181105.

It is an arithmetic number, because the mean of its divisors is an integer number (42181105).

Almost surely, 2^84362209 is an apocalyptic number.

It is an amenable number.

84362209 is a deficient number, since it is larger than the sum of its proper divisors (1).

84362209 is an equidigital number, since it uses as much as digits as its factorization.

84362209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 84362209 is about 9184.8902551963. The cubic root of 84362209 is about 438.5804959906.

The spelling of 84362209 in words is "eighty-four million, three hundred sixty-two thousand, two hundred nine".