84842245 has 8 divisors (see below), whose sum is σ = 102009240. Its totient is φ = 67741440.

The previous prime is 84842237. The next prime is 84842269. The reversal of 84842245 is 54224848.

It can be written as a sum of positive squares in 4 ways, for example, as 21846276 + 62995969 = 4674^2 + 7937^2 .

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

It is not a de Polignac number, because 84842245 - 2³ = 84842237 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13680 + ... + 18889.

It is an arithmetic number, because the mean of its divisors is an integer number (12751155).

Almost surely, 2^84842245 is an apocalyptic number.

It is an amenable number.

84842245 is a deficient number, since it is larger than the sum of its proper divisors (17166995).

84842245 is a wasteful number, since it uses less digits than its factorization.

84842245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33095.

The product of its digits is 81920, while the sum is 37.

The square root of 84842245 is about 9210.9850179012. The cubic root of 84842245 is about 439.4107901903.

The spelling of 84842245 in words is "eighty-four million, eight hundred forty-two thousand, two hundred forty-five".