84210099 has 16 divisors (see below), whose sum is σ = 114271392. Its totient is φ = 55150848.

The previous prime is 84210083. The next prime is 84210121. The reversal of 84210099 is 99001248.

It is not a de Polignac number, because 84210099 - 2⁴ = 84210083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (84210029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68817 + ... + 70029.

It is an arithmetic number, because the mean of its divisors is an integer number (7141962).

Almost surely, 2^84210099 is an apocalyptic number.

84210099 is a deficient number, since it is larger than the sum of its proper divisors (30061293).

84210099 is a wasteful number, since it uses less digits than its factorization.

84210099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1606.

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 84210099 is about 9176.6060719636. The cubic root of 84210099 is about 438.3167419719.

The spelling of 84210099 in words is "eighty-four million, two hundred ten thousand, ninety-nine".