1084191617 has 4 divisors (see below), whose sum is σ = 1086767316. Its totient is φ = 1081615920.

The previous prime is 1084191607. The next prime is 1084191653. The reversal of 1084191617 is 7161914801.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7161914801 = 113 ⋅63379777.

It can be written as a sum of positive squares in 2 ways, for example, as 168766081 + 915425536 = 12991^2 + 30256^2 .

It is a cyclic number.

It is not a de Polignac number, because 1084191617 - 2²⁰ = 1083143041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1084191607) 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, 1287218 + ... + 1288059.

It is an arithmetic number, because the mean of its divisors is an integer number (271691829).

Almost surely, 2^1084191617 is an apocalyptic number.

It is an amenable number.

1084191617 is a deficient number, since it is larger than the sum of its proper divisors (2575699).

1084191617 is an equidigital number, since it uses as much as digits as its factorization.

1084191617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2575698.

The product of its (nonzero) digits is 12096, while the sum is 38.

The square root of 1084191617 is about 32927.0651136721. The cubic root of 1084191617 is about 1027.3111812371.

The spelling of 1084191617 in words is "one billion, eighty-four million, one hundred ninety-one thousand, six hundred seventeen".