987876523 has 2 divisors, whose sum is σ = 987876524. Its totient is φ = 987876522.

The previous prime is 987876497. The next prime is 987876553. The reversal of 987876523 is 325678789.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-987876523 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is not a weakly prime, because it can be changed into another prime (987876553) 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, 493938261 + 493938262.

It is an arithmetic number, because the mean of its divisors is an integer number (493938262).

Almost surely, 2^987876523 is an apocalyptic number.

987876523 is a deficient number, since it is larger than the sum of its proper divisors (1).

987876523 is an equidigital number, since it uses as much as digits as its factorization.

987876523 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5080320, while the sum is 55.

The square root of 987876523 is about 31430.5030662890. The cubic root of 987876523 is about 995.9423991436.

The spelling of 987876523 in words is "nine hundred eighty-seven million, eight hundred seventy-six thousand, five hundred twenty-three".