987290107 has 2 divisors, whose sum is σ = 987290108. Its totient is φ = 987290106.

The previous prime is 987290071. The next prime is 987290197. The reversal of 987290107 is 701092789.

It is a happy number.

Together with previous prime (987290071) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is an emirp because it is prime and its reverse (701092789) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 987290107 - 2¹¹ = 987288059 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is not a weakly prime, because it can be changed into another prime (987290197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 493645053 + 493645054.

It is an arithmetic number, because the mean of its divisors is an integer number (493645054).

Almost surely, 2^987290107 is an apocalyptic number.

987290107 is a deficient number, since it is larger than the sum of its proper divisors (1).

987290107 is an equidigital number, since it uses as much as digits as its factorization.

987290107 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 63504, while the sum is 43.

The square root of 987290107 is about 31421.1729093616. The cubic root of 987290107 is about 995.7452921347.

The spelling of 987290107 in words is "nine hundred eighty-seven million, two hundred ninety thousand, one hundred seven".