84347015117 has 4 divisors (see below), whose sum is σ = 84370892700. Its totient is φ = 84323137536.

The previous prime is 84347015083. The next prime is 84347015147. The reversal of 84347015117 is 71151074348.

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

It can be written as a sum of positive squares in 2 ways, for example, as 46643472841 + 37703542276 = 215971^2 + 194174^2 .

It is a cyclic number.

It is not a de Polignac number, because 84347015117 - 2¹⁴ = 84346998733 is a prime.

It is a super-2 number, since 2×84347015117² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84347015147) 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, 11933492 + ... + 11940557.

It is an arithmetic number, because the mean of its divisors is an integer number (21092723175).

Almost surely, 2^84347015117 is an apocalyptic number.

It is an amenable number.

84347015117 is a deficient number, since it is larger than the sum of its proper divisors (23877583).

84347015117 is a wasteful number, since it uses less digits than its factorization.

84347015117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23877582.

The product of its (nonzero) digits is 94080, while the sum is 41.

The spelling of 84347015117 in words is "eighty-four billion, three hundred forty-seven million, fifteen thousand, one hundred seventeen".