84274670617 has 2 divisors, whose sum is σ = 84274670618. Its totient is φ = 84274670616.

The previous prime is 84274670581. The next prime is 84274670621. The reversal of 84274670617 is 71607647248.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 84274670601 + 16 = 290301^2 + 4^2 .

It is a cyclic number.

It is not a de Polignac number, because 84274670617 - 2¹⁹ = 84274146329 is a prime.

It is a super-3 number, since 3×84274670617³ (a number of 34 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (84274670647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42137335308 + 42137335309.

It is an arithmetic number, because the mean of its divisors is an integer number (42137335309).

Almost surely, 2^84274670617 is an apocalyptic number.

It is an amenable number.

84274670617 is a deficient number, since it is larger than the sum of its proper divisors (1).

84274670617 is an equidigital number, since it uses as much as digits as its factorization.

84274670617 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3161088, while the sum is 52.

The spelling of 84274670617 in words is "eighty-four billion, two hundred seventy-four million, six hundred seventy thousand, six hundred seventeen".