84287229 has 12 divisors (see below), whose sum is σ = 121693536. Its totient is φ = 51868752.

The previous prime is 84287219. The next prime is 84287239. The reversal of 84287229 is 92278248.

It is an interprime number because it is at equal distance from previous prime (84287219) and next prime (84287239).

It is not a de Polignac number, because 84287229 - 2⁷ = 84287101 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84287209) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 82617 + ... + 83630.

It is an arithmetic number, because the mean of its divisors is an integer number (10141128).

Almost surely, 2^84287229 is an apocalyptic number.

It is an amenable number.

84287229 is a deficient number, since it is larger than the sum of its proper divisors (37406307).

84287229 is a wasteful number, since it uses less digits than its factorization.

84287229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166276 (or 166263 counting only the distinct ones).

The product of its digits is 129024, while the sum is 42.

The square root of 84287229 is about 9180.8076442108. The cubic root of 84287229 is about 438.4505226557.

The spelling of 84287229 in words is "eighty-four million, two hundred eighty-seven thousand, two hundred twenty-nine".