84350569 has 2 divisors, whose sum is σ = 84350570. Its totient is φ = 84350568.

The previous prime is 84350527. The next prime is 84350573. The reversal of 84350569 is 96505348.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 77528025 + 6822544 = 8805^2 + 2612^2 .

It is a cyclic number.

It is not a de Polignac number, because 84350569 - 2²¹ = 82253417 is a prime.

It is a super-2 number, since 2×84350569² = 14230036981247522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (84350069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42175284 + 42175285.

It is an arithmetic number, because the mean of its divisors is an integer number (42175285).

Almost surely, 2^84350569 is an apocalyptic number.

It is an amenable number.

84350569 is a deficient number, since it is larger than the sum of its proper divisors (1).

84350569 is an equidigital number, since it uses as much as digits as its factorization.

84350569 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 129600, while the sum is 40.

The square root of 84350569 is about 9184.2565839593. The cubic root of 84350569 is about 438.5603237996.

The spelling of 84350569 in words is "eighty-four million, three hundred fifty thousand, five hundred sixty-nine".