987652481 has 2 divisors, whose sum is σ = 987652482. Its totient is φ = 987652480.

The previous prime is 987652469. The next prime is 987652483. The reversal of 987652481 is 184256789.

987652481 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 876160000 + 111492481 = 29600^2 + 10559^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-987652481 is a prime.

It is a super-2 number, since 2×987652481² = 1950914846450910722, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 987652483, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (987652483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 493826240 + 493826241.

It is an arithmetic number, because the mean of its divisors is an integer number (493826241).

Almost surely, 2^987652481 is an apocalyptic number.

It is an amenable number.

987652481 is a deficient number, since it is larger than the sum of its proper divisors (1).

987652481 is an equidigital number, since it uses as much as digits as its factorization.

987652481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 967680, while the sum is 50.

The square root of 987652481 is about 31426.9387786975. The cubic root of 987652481 is about 995.8671030271.

The spelling of 987652481 in words is "nine hundred eighty-seven million, six hundred fifty-two thousand, four hundred eighty-one".