84359039 has 4 divisors (see below), whose sum is σ = 84498624. Its totient is φ = 84219456.

The previous prime is 84359027. The next prime is 84359053. The reversal of 84359039 is 93095348.

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 84359039 - 2²⁰ = 83310463 is a prime.

It is a super-2 number, since 2×84359039² = 14232894922007042, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 84358987 and 84359005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84359059) 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, 68882 + ... + 70095.

It is an arithmetic number, because the mean of its divisors is an integer number (21124656).

Almost surely, 2^84359039 is an apocalyptic number.

84359039 is a deficient number, since it is larger than the sum of its proper divisors (139585).

84359039 is a wasteful number, since it uses less digits than its factorization.

84359039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139584.

The product of its (nonzero) digits is 116640, while the sum is 41.

The square root of 84359039 is about 9184.7176875503. The cubic root of 84359039 is about 438.5750025451.

The spelling of 84359039 in words is "eighty-four million, three hundred fifty-nine thousand, thirty-nine".