987113293 has 2 divisors, whose sum is σ = 987113294. Its totient is φ = 987113292.

The previous prime is 987113249. The next prime is 987113357. The reversal of 987113293 is 392311789.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 833303689 + 153809604 = 28867^2 + 12402^2 .

It is a cyclic number.

It is not a de Polignac number, because 987113293 - 2¹⁷ = 986982221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (987113233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 493556646 + 493556647.

It is an arithmetic number, because the mean of its divisors is an integer number (493556647).

Almost surely, 2^987113293 is an apocalyptic number.

It is an amenable number.

987113293 is a deficient number, since it is larger than the sum of its proper divisors (1).

987113293 is an equidigital number, since it uses as much as digits as its factorization.

987113293 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 81648, while the sum is 43.

The square root of 987113293 is about 31418.3591710325. The cubic root of 987113293 is about 995.6858458388.

The spelling of 987113293 in words is "nine hundred eighty-seven million, one hundred thirteen thousand, two hundred ninety-three".