987165097 has 2 divisors, whose sum is σ = 987165098. Its totient is φ = 987165096.

The previous prime is 987165089. The next prime is 987165103. The reversal of 987165097 is 790561789.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 967769881 + 19395216 = 31109^2 + 4404^2 .

It is an emirp because it is prime and its reverse (790561789) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 987165097 - 2³ = 987165089 is a prime.

It is not a weakly prime, because it can be changed into another prime (987165797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 493582548 + 493582549.

It is an arithmetic number, because the mean of its divisors is an integer number (493582549).

Almost surely, 2^987165097 is an apocalyptic number.

It is an amenable number.

987165097 is a deficient number, since it is larger than the sum of its proper divisors (1).

987165097 is an equidigital number, since it uses as much as digits as its factorization.

987165097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 952560, while the sum is 52.

The square root of 987165097 is about 31419.1835826458. The cubic root of 987165097 is about 995.7032634975.

The spelling of 987165097 in words is "nine hundred eighty-seven million, one hundred sixty-five thousand, ninety-seven".