869147017 has 2 divisors, whose sum is σ = 869147018. Its totient is φ = 869147016.

The previous prime is 869147011. The next prime is 869147029. The reversal of 869147017 is 710741968.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 476156041 + 392990976 = 21821^2 + 19824^2 .

It is a cyclic number.

It is not a de Polignac number, because 869147017 - 2¹⁵ = 869114249 is a prime.

It is not a weakly prime, because it can be changed into another prime (869147011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 434573508 + 434573509.

It is an arithmetic number, because the mean of its divisors is an integer number (434573509).

Almost surely, 2^869147017 is an apocalyptic number.

It is an amenable number.

869147017 is a deficient number, since it is larger than the sum of its proper divisors (1).

869147017 is an equidigital number, since it uses as much as digits as its factorization.

869147017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 84672, while the sum is 43.

The square root of 869147017 is about 29481.2994455808. The cubic root of 869147017 is about 954.3281796759.

The spelling of 869147017 in words is "eight hundred sixty-nine million, one hundred forty-seven thousand, seventeen".