84099229 has 2 divisors, whose sum is σ = 84099230. Its totient is φ = 84099228.

The previous prime is 84099209. The next prime is 84099259. The reversal of 84099229 is 92299048.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 70593604 + 13505625 = 8402^2 + 3675^2 .

It is a cyclic number.

It is not a de Polignac number, because 84099229 - 2⁹ = 84098717 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84099209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42049614 + 42049615.

It is an arithmetic number, because the mean of its divisors is an integer number (42049615).

Almost surely, 2^84099229 is an apocalyptic number.

It is an amenable number.

84099229 is a deficient number, since it is larger than the sum of its proper divisors (1).

84099229 is an equidigital number, since it uses as much as digits as its factorization.

84099229 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 93312, while the sum is 43.

The square root of 84099229 is about 9170.5631779079. The cubic root of 84099229 is about 438.1242966459.

The spelling of 84099229 in words is "eighty-four million, ninety-nine thousand, two hundred twenty-nine".