84221030 has 16 divisors (see below), whose sum is σ = 152990640. Its totient is φ = 33378912.

The previous prime is 84221023. The next prime is 84221051. The reversal of 84221030 is 3012248.

It is a junction number, because it is equal to n+sod(n) for n = 84220993 and 84221011.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37544 + ... + 39723.

It is an arithmetic number, because the mean of its divisors is an integer number (9561915).

Almost surely, 2^84221030 is an apocalyptic number.

84221030 is a deficient number, since it is larger than the sum of its proper divisors (68769610).

84221030 is a wasteful number, since it uses less digits than its factorization.

84221030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77383.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 84221030 is about 9177.2016432026. The cubic root of 84221030 is about 438.3357065738.

Adding to 84221030 its reverse (3012248), we get a palindrome (87233278).

The spelling of 84221030 in words is "eighty-four million, two hundred twenty-one thousand, thirty".