84290027839 has 4 divisors (see below), whose sum is σ = 85548088024. Its totient is φ = 83031967656.

The previous prime is 84290027819. The next prime is 84290027917. The reversal of 84290027839 is 93872009248.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 84290027839 - 2¹⁷ = 84289896767 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84290027819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 629029992 + ... + 629030125.

It is an arithmetic number, because the mean of its divisors is an integer number (21387022006).

Almost surely, 2^84290027839 is an apocalyptic number.

84290027839 is a deficient number, since it is larger than the sum of its proper divisors (1258060185).

84290027839 is a wasteful number, since it uses less digits than its factorization.

84290027839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1258060184.

The product of its (nonzero) digits is 1741824, while the sum is 52.

The spelling of 84290027839 in words is "eighty-four billion, two hundred ninety million, twenty-seven thousand, eight hundred thirty-nine".