987517411 has 2 divisors, whose sum is σ = 987517412. Its totient is φ = 987517410.

The previous prime is 987517409. The next prime is 987517439. The reversal of 987517411 is 114715789.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 987517411 - 2¹ = 987517409 is a prime.

Together with 987517409, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (987517451) 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, 493758705 + 493758706.

It is an arithmetic number, because the mean of its divisors is an integer number (493758706).

Almost surely, 2^987517411 is an apocalyptic number.

987517411 is a deficient number, since it is larger than the sum of its proper divisors (1).

987517411 is an equidigital number, since it uses as much as digits as its factorization.

987517411 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 70560, while the sum is 43.

The square root of 987517411 is about 31424.7897526777. The cubic root of 987517411 is about 995.8217031506.

The spelling of 987517411 in words is "nine hundred eighty-seven million, five hundred seventeen thousand, four hundred eleven".