987027901 has 2 divisors, whose sum is σ = 987027902. Its totient is φ = 987027900.

The previous prime is 987027883. The next prime is 987027907. The reversal of 987027901 is 109720789.

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., 861363801 + 125664100 = 29349^2 + 11210^2 .

It is a cyclic number.

It is not a de Polignac number, because 987027901 - 2¹⁷ = 986896829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (987027907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 493513950 + 493513951.

It is an arithmetic number, because the mean of its divisors is an integer number (493513951).

Almost surely, 2^987027901 is an apocalyptic number.

It is an amenable number.

987027901 is a deficient number, since it is larger than the sum of its proper divisors (1).

987027901 is an equidigital number, since it uses as much as digits as its factorization.

987027901 is an odious number, because the sum of its binary digits is odd.

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

The square root of 987027901 is about 31417.0001909794. Note that the first 3 decimals coincide. The cubic root of 987027901 is about 995.6571338162.

The spelling of 987027901 in words is "nine hundred eighty-seven million, twenty-seven thousand, nine hundred one".