887970718417 has 2 divisors, whose sum is σ = 887970718418. Its totient is φ = 887970718416.

The previous prime is 887970718379. The next prime is 887970718471. The reversal of 887970718417 is 714817079788.

It is a happy number.

Together with next prime (887970718471) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 884833710336 + 3137008081 = 940656^2 + 56009^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-887970718417 is a prime.

It is not a weakly prime, because it can be changed into another prime (887970719417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 443985359208 + 443985359209.

It is an arithmetic number, because the mean of its divisors is an integer number (443985359209).

Almost surely, 2^887970718417 is an apocalyptic number.

It is an amenable number.

887970718417 is a deficient number, since it is larger than the sum of its proper divisors (1).

887970718417 is an equidigital number, since it uses as much as digits as its factorization.

887970718417 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 44255232, while the sum is 67.

The spelling of 887970718417 in words is "eight hundred eighty-seven billion, nine hundred seventy million, seven hundred eighteen thousand, four hundred seventeen".