849071417 has 2 divisors, whose sum is σ = 849071418. Its totient is φ = 849071416.

The previous prime is 849071413. The next prime is 849071453. The reversal of 849071417 is 714170948.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 438441721 + 410629696 = 20939^2 + 20264^2 .

It is a cyclic number.

It is not a de Polignac number, because 849071417 - 2² = 849071413 is a prime.

It is not a weakly prime, because it can be changed into another prime (849071413) 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 as a sum of consecutive naturals, namely, 424535708 + 424535709.

It is an arithmetic number, because the mean of its divisors is an integer number (424535709).

Almost surely, 2^849071417 is an apocalyptic number.

It is an amenable number.

849071417 is a deficient number, since it is larger than the sum of its proper divisors (1).

849071417 is an equidigital number, since it uses as much as digits as its factorization.

849071417 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56448, while the sum is 41.

The square root of 849071417 is about 29138.8300554432. The cubic root of 849071417 is about 946.9231635825.

The spelling of 849071417 in words is "eight hundred forty-nine million, seventy-one thousand, four hundred seventeen".