84870039 has 8 divisors (see below), whose sum is σ = 114849280. Its totient is φ = 55735416.

The previous prime is 84870007. The next prime is 84870061. The reversal of 84870039 is 93007848.

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

It is not a de Polignac number, because 84870039 - 2⁵ = 84870007 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 84869979 and 84870006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84870439) 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 7 ways as a sum of consecutive naturals, for example, 210919 + ... + 211320.

It is an arithmetic number, because the mean of its divisors is an integer number (14356160).

Almost surely, 2^84870039 is an apocalyptic number.

84870039 is a deficient number, since it is larger than the sum of its proper divisors (29979241).

84870039 is a wasteful number, since it uses less digits than its factorization.

84870039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422309.

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 84870039 is about 9212.4936363614. The cubic root of 84870039 is about 439.4587680583.

The spelling of 84870039 in words is "eighty-four million, eight hundred seventy thousand, thirty-nine".