84522170 has 8 divisors (see below), whose sum is σ = 152139924. Its totient is φ = 33808864.

The previous prime is 84522167. The next prime is 84522199. The reversal of 84522170 is 7122548.

It can be written as a sum of positive squares in 2 ways, for example, as 72914521 + 11607649 = 8539^2 + 3407^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 4226099 + ... + 4226118.

Almost surely, 2^84522170 is an apocalyptic number.

84522170 is a deficient number, since it is larger than the sum of its proper divisors (67617754).

84522170 is a wasteful number, since it uses less digits than its factorization.

84522170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8452224.

The product of its (nonzero) digits is 4480, while the sum is 29.

The square root of 84522170 is about 9193.5939653652. The cubic root of 84522170 is about 438.8575216119.

The spelling of 84522170 in words is "eighty-four million, five hundred twenty-two thousand, one hundred seventy".