84839305 has 8 divisors (see below), whose sum is σ = 102551112. Its totient is φ = 67375488.

The previous prime is 84839303. The next prime is 84839309. The reversal of 84839305 is 50393848.

It can be written as a sum of positive squares in 4 ways, for example, as 20967241 + 63872064 = 4579^2 + 7992^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 84839305 - 2¹ = 84839303 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84839303) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61242 + ... + 62611.

It is an arithmetic number, because the mean of its divisors is an integer number (12818889).

Almost surely, 2^84839305 is an apocalyptic number.

It is an amenable number.

84839305 is a deficient number, since it is larger than the sum of its proper divisors (17711807).

84839305 is a wasteful number, since it uses less digits than its factorization.

84839305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123995.

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 84839305 is about 9210.8254244666. The cubic root of 84839305 is about 439.4057145638.

The spelling of 84839305 in words is "eighty-four million, eight hundred thirty-nine thousand, three hundred five".