987361 has 2 divisors, whose sum is σ = 987362. Its totient is φ = 987360.

The previous prime is 987353. The next prime is 987383. The reversal of 987361 is 163789.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 938961 + 48400 = 969^2 + 220^2 .

It is an emirp because it is prime and its reverse (163789) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 987361 - 2³ = 987353 is a prime.

987361 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (987391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 493680 + 493681.

It is an arithmetic number, because the mean of its divisors is an integer number (493681).

2⁹⁸⁷³⁶¹ is an apocalyptic number.

It is an amenable number.

987361 is a deficient number, since it is larger than the sum of its proper divisors (1).

987361 is an equidigital number, since it uses as much as digits as its factorization.

987361 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9072, while the sum is 34.

The square root of 987361 is about 993.6604047661. The cubic root of 987361 is about 99.5769124941.

It can be divided in two parts, 9873 and 61, that multiplied together give a triangular number (602253 = T₁₀₉₇).

The spelling of 987361 in words is "nine hundred eighty-seven thousand, three hundred sixty-one".