8025434839 has 4 divisors (see below), whose sum is σ = 8069774440. Its totient is φ = 7981095240.

The previous prime is 8025434789. The next prime is 8025434933. The reversal of 8025434839 is 9384345208.

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 8025434839 - 2¹⁵ = 8025402071 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 (8025434539) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22169529 + ... + 22169890.

It is an arithmetic number, because the mean of its divisors is an integer number (2017443610).

Almost surely, 2^8025434839 is an apocalyptic number.

8025434839 is a deficient number, since it is larger than the sum of its proper divisors (44339601).

8025434839 is a wasteful number, since it uses less digits than its factorization.

8025434839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44339600.

The product of its (nonzero) digits is 829440, while the sum is 46.

The square root of 8025434839 is about 89584.7913375926. The cubic root of 8025434839 is about 2002.1173275876.

The spelling of 8025434839 in words is "eight billion, twenty-five million, four hundred thirty-four thousand, eight hundred thirty-nine".