887117617 has 2 divisors, whose sum is σ = 887117618. Its totient is φ = 887117616.

The previous prime is 887117611. The next prime is 887117629. The reversal of 887117617 is 716711788.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 725548096 + 161569521 = 26936^2 + 12711^2 .

It is a cyclic number.

It is not a de Polignac number, because 887117617 - 2²³ = 878729009 is a prime.

It is not a weakly prime, because it can be changed into another prime (887117611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 443558808 + 443558809.

It is an arithmetic number, because the mean of its divisors is an integer number (443558809).

Almost surely, 2^887117617 is an apocalyptic number.

It is an amenable number.

887117617 is a deficient number, since it is larger than the sum of its proper divisors (1).

887117617 is an equidigital number, since it uses as much as digits as its factorization.

887117617 is an evil number, because the sum of its binary digits is even.

The product of its digits is 131712, while the sum is 46.

The square root of 887117617 is about 29784.5197543959. The cubic root of 887117617 is about 960.8606348266.

The spelling of 887117617 in words is "eight hundred eighty-seven million, one hundred seventeen thousand, six hundred seventeen".